drop peer_mgr in time (#2064)

Addresses issue #2016 where nodes behind unstable networks
(e.g. campus firewalls) cause excessive traffic that can freeze
the remote node.

Two changes in peer_ospf_route.rs:

- Make do_sync_route_info only trigger reverse sync_now when
  incoming data actually changed the route table or foreign
  network state.  The previous unconditional sync_now created
  an A->B->A->B ping-pong cycle on every RPC exchange.

- Add exponential backoff (50ms..5s) to session_task retry loop.
  The previous fixed 50ms retry produced ~20 RPCs/s during
  sustained network instability.

easytier-web/frontend-lib/src/locales/cn.yaml

@@ -286,9 +286,6 @@ web:
     logout: 退出登录
     language: 语言
     change_password: 修改密码
-    change_password_now: 立即修改密码
-    default_password_warning: 当前账号仍在使用系统默认密码。为保障安全，请部署完成后立即修改密码。
-    password_changed_relogin: 密码已修改，请重新登录。
 
   device:
     list: 设备列表
@@ -363,11 +360,6 @@ web:
     success: 成功
     warning: 警告
     info: 提示
-    password_empty: 密码不能为空
-    password_min_length: 密码至少需要 8 位
-    password_too_weak: 密码强度不足
-    password_mismatch: 两次输入的密码不一致
-    password_strength_hint: 密码至少 8 位，且需包含大小写字母、数字、特殊字符中的至少 2 类
     enable: 开启
     disable: 关闭
     address: 地址

easytier-web/frontend-lib/src/locales/en.yaml

@@ -286,9 +286,6 @@ web:
     logout: Logout
     language: Language
     change_password: Change Password
-    change_password_now: Change Password Now
-    default_password_warning: This account is still using the default password. Change it immediately after deployment to keep your instance secure.
-    password_changed_relogin: Password changed. Please log in again.
 
   device:
     list: Device List
@@ -363,11 +360,6 @@ web:
     success: Success
     warning: Warning
     info: Info
-    password_empty: Password cannot be empty
-    password_min_length: Password must be at least 8 characters long
-    password_too_weak: Password is too weak
-    password_mismatch: Passwords do not match
-    password_strength_hint: Password must be at least 8 characters and include at least 2 of uppercase letters, lowercase letters, numbers, or special characters
     enable: Enable
     disable: Disable
     address: Address

easytier-web/frontend/src/components/ChangePassword.vue

@@ -1,80 +1,17 @@
 <script lang="ts" setup>
 import { computed, inject, ref } from 'vue';
 import { Card, Password, Button } from 'primevue';
-import { useToast } from 'primevue/usetoast';
-import { useRouter } from 'vue-router';
-import { useI18n } from 'vue-i18n';
 import ApiClient from '../modules/api';
-import { clearMustChangePasswordFlag } from '../modules/auth-status';
-import { validatePasswordStrength } from '../modules/password-policy';
 
 const dialogRef = inject<any>('dialogRef');
 
 const api = computed<ApiClient>(() => dialogRef.value.data.api);
 
 const password = ref('');
-const confirmPassword = ref('');
-const toast = useToast();
-const router = useRouter();
-const { t } = useI18n();
-const passwordValidation = computed(() => validatePasswordStrength(password.value));
-const passwordMatches = computed(() => password.value === confirmPassword.value);
-const passwordErrorMessage = computed(() => {
-    if (password.value.length === 0 || passwordValidation.value.valid) {
-        return '';
-    }
-
-    return t(passwordValidation.value.reasonKey!);
-});
-const confirmPasswordErrorMessage = computed(() => {
-    if (confirmPassword.value.length === 0 || passwordMatches.value) {
-        return '';
-    }
-
-    return t('web.common.password_mismatch');
-});
-const canSubmit = computed(() => passwordValidation.value.valid && passwordMatches.value);
 
 const changePassword = async () => {
-    if (!passwordValidation.value.valid) {
-        toast.add({
-            severity: 'warn',
-            summary: t('web.common.warning'),
-            detail: t(passwordValidation.value.reasonKey!),
-            life: 3000,
-        });
-        return;
-    }
-
-    if (!passwordMatches.value) {
-        toast.add({
-            severity: 'warn',
-            summary: t('web.common.warning'),
-            detail: t('web.common.password_mismatch'),
-            life: 3000,
-        });
-        return;
-    }
-
-    try {
     await api.value.change_password(password.value);
-        toast.add({
-            severity: 'success',
-            summary: t('web.common.success'),
-            detail: t('web.main.password_changed_relogin'),
-            life: 3000,
-        });
-        clearMustChangePasswordFlag();
     dialogRef.value.close();
-        router.push({ name: 'login' });
-    } catch (error) {
-        toast.add({
-            severity: 'error',
-            summary: t('web.common.error'),
-            detail: error instanceof Error ? error.message : String(error),
-            life: 3000,
-        });
-    }
 }
 </script>
 
@@ -82,26 +19,13 @@ const changePassword = async () => {
     <div class="flex items-center justify-center">
         <Card class="w-full max-w-md p-6">
             <template #header>
-                <h2 class="text-2xl font-semibold text-center">{{ t('web.main.change_password') }}
+                <h2 class="text-2xl font-semibold text-center">Change Password
                 </h2>
             </template>
             <template #content>
                 <div class="flex flex-col space-y-4">
-                    <Password v-model="password" :placeholder="t('web.settings.new_password')" :feedback="false"
+                    <Password v-model="password" placeholder="New Password" :feedback="false" toggleMask />
-                        toggleMask />
+                    <Button @click="changePassword" label="Ok" />
-                    <Password v-model="confirmPassword" :placeholder="t('web.settings.confirm_password')"
-                        :feedback="false" toggleMask />
-                    <small class="text-surface-500 dark:text-surface-400">
-                        {{ t('web.common.password_strength_hint') }}
-                    </small>
-                    <small v-if="passwordErrorMessage" class="text-red-500 dark:text-red-400">
-                        {{ passwordErrorMessage }}
-                    </small>
-                    <small v-if="confirmPasswordErrorMessage" class="text-red-500 dark:text-red-400">
-                        {{ confirmPasswordErrorMessage }}
-                    </small>
-                    <Button @click="changePassword" :label="t('web.common.confirm')"
-                        :disabled="!canSubmit" />
                 </div>
             </template>
         </Card>

easytier-web/frontend/src/components/Login.vue

@@ -7,8 +7,6 @@ import { I18nUtils } from 'easytier-frontend-lib';
 import { getInitialApiHost, cleanAndLoadApiHosts, saveApiHost } from "../modules/api-host"
 import { useI18n } from 'vue-i18n'
 import ApiClient, { Credential, RegisterData } from '../modules/api';
-import { setMustChangePasswordFlag } from '../modules/auth-status';
-import { validatePasswordStrength } from '../modules/password-policy';
 
 const { t } = useI18n()
 
@@ -24,26 +22,8 @@ const username = ref('');
 const password = ref('');
 const registerUsername = ref('');
 const registerPassword = ref('');
-const registerConfirmPassword = ref('');
 const captcha = ref('');
 const captchaSrc = computed(() => api.value.captcha_url());
-const registerPasswordValidation = computed(() => validatePasswordStrength(registerPassword.value));
-const registerPasswordsMatch = computed(() => registerPassword.value === registerConfirmPassword.value);
-const registerPasswordErrorMessage = computed(() => {
-    if (registerPassword.value.length === 0 || registerPasswordValidation.value.valid) {
-        return '';
-    }
-
-    return t(registerPasswordValidation.value.reasonKey!);
-});
-const registerConfirmPasswordErrorMessage = computed(() => {
-    if (registerConfirmPassword.value.length === 0 || registerPasswordsMatch.value) {
-        return '';
-    }
-
-    return t('web.common.password_mismatch');
-});
-const canRegister = computed(() => registerPasswordValidation.value.valid && registerPasswordsMatch.value);
 
 
 const onSubmit = async () => {
@@ -53,7 +33,6 @@ const onSubmit = async () => {
     let ret = await api.value?.login(credential);
     if (ret.success) {
         localStorage.setItem('apiHost', btoa(apiHost.value));
-        setMustChangePasswordFlag(Boolean(ret.mustChangePassword));
         router.push({
             name: 'dashboard',
             params: { apiHost: btoa(apiHost.value) },
@@ -64,26 +43,6 @@ const onSubmit = async () => {
 };
 
 const onRegister = async () => {
-    if (!registerPasswordValidation.value.valid) {
-        toast.add({
-            severity: 'warn',
-            summary: t('web.common.warning'),
-            detail: t(registerPasswordValidation.value.reasonKey!),
-            life: 3000,
-        });
-        return;
-    }
-
-    if (!registerPasswordsMatch.value) {
-        toast.add({
-            severity: 'warn',
-            summary: t('web.common.warning'),
-            detail: t('web.common.password_mismatch'),
-            life: 3000,
-        });
-        return;
-    }
-
     saveApiHost(apiHost.value);
     const credential: Credential = { username: registerUsername.value, password: registerPassword.value };
     const registerReq: RegisterData = { credentials: credential, captcha: captcha.value };
@@ -197,23 +156,6 @@ onBeforeUnmount(() => {
                             }}</label>
                         <Password id="register-password" v-model="registerPassword" required toggleMask
                             :feedback="false" class="w-full" />
-                        <small class="text-surface-500 dark:text-surface-400">
-                            {{ t('web.common.password_strength_hint') }}
-                        </small>
-                        <small v-if="registerPasswordErrorMessage" class="block text-red-500 dark:text-red-400">
-                            {{ registerPasswordErrorMessage }}
-                        </small>
-                    </div>
-                    <div class="p-field">
-                        <label for="register-confirm-password" class="block text-sm font-medium">
-                            {{ t('web.settings.confirm_password') }}
-                        </label>
-                        <Password id="register-confirm-password" v-model="registerConfirmPassword" required toggleMask
-                            :feedback="false" class="w-full" />
-                        <small v-if="registerConfirmPasswordErrorMessage"
-                            class="block text-red-500 dark:text-red-400">
-                            {{ registerConfirmPasswordErrorMessage }}
-                        </small>
                     </div>
                     <div class="p-field">
                         <label for="captcha" class="block text-sm font-medium">{{ t('web.login.captcha') }}</label>
@@ -221,8 +163,7 @@ onBeforeUnmount(() => {
                         <img :src="captchaSrc" alt="Captcha" class="mt-2 mb-2" />
                     </div>
                     <div class="flex items-center justify-between">
-                        <Button :label="t('web.login.register')" type="submit" class="w-full"
+                        <Button :label="t('web.login.register')" type="submit" class="w-full" />
-                            :disabled="!canRegister" />
                     </div>
                     <div class="flex items-center justify-between">
                         <Button :label="t('web.login.back_to_login')" type="button" class="w-full"

easytier-web/frontend/src/components/MainPage.vue

@@ -1,18 +1,13 @@
 <script setup lang="ts">
 import { I18nUtils } from 'easytier-frontend-lib'
 import { computed, onMounted, ref, onUnmounted, nextTick } from 'vue';
-import { Button, Message, TieredMenu } from 'primevue';
+import { Button, TieredMenu } from 'primevue';
 import { useRoute, useRouter } from 'vue-router';
 import { useDialog } from 'primevue/usedialog';
 import ChangePassword from './ChangePassword.vue';
 import Icon from '../assets/easytier.png'
 import { useI18n } from 'vue-i18n'
 import ApiClient from '../modules/api';
-import {
-    clearMustChangePasswordFlag,
-    getMustChangePasswordFlag,
-    setMustChangePasswordFlag,
-} from '../modules/auth-status';
 
 const { t } = useI18n()
 const route = useRoute();
@@ -20,7 +15,6 @@ const router = useRouter();
 const api = computed<ApiClient | undefined>(() => {
     try {
         return new ApiClient(atob(route.params.apiHost as string), () => {
-            clearMustChangePasswordFlag();
             router.push({ name: 'login' });
         })
     } catch (e) {
@@ -29,10 +23,15 @@ const api = computed<ApiClient | undefined>(() => {
 });
 
 const dialog = useDialog();
-const mustChangePassword = ref(false);
 
-const openChangePasswordDialog = () => {
+const userMenu = ref();
-    dialog.open(ChangePassword, {
+const userMenuItems = ref([
+    {
+        label: t('web.main.change_password'),
+        icon: 'pi pi-key',
+        command: () => {
+            console.log('File');
+            let ret = dialog.open(ChangePassword, {
                 props: {
                     modal: true,
                 },
@@ -40,31 +39,9 @@ const openChangePasswordDialog = () => {
                     api: api.value,
                 }
             });
-};
 
-const loadAuthStatus = async () => {
+            console.log("return", ret)
-    const cachedStatus = getMustChangePasswordFlag();
+        },
-    if (cachedStatus !== null) {
-        mustChangePassword.value = cachedStatus;
-    }
-
-    try {
-        const status = await api.value?.check_login_status();
-        mustChangePassword.value = Boolean(
-            status?.loggedIn && status?.mustChangePassword,
-        );
-        setMustChangePasswordFlag(mustChangePassword.value);
-    } catch (e) {
-        console.error('Failed to load auth status', e);
-    }
-};
-
-const userMenu = ref();
-const userMenuItems = ref([
-    {
-        label: t('web.main.change_password'),
-        icon: 'pi pi-key',
-        command: openChangePasswordDialog,
     },
     {
         label: t('web.main.logout'),
@@ -75,7 +52,6 @@ const userMenuItems = ref([
             } catch (e) {
                 console.error("logout failed", e);
             }
-            clearMustChangePasswordFlag();
             router.push({ name: 'login' });
         },
     },
@@ -116,7 +92,6 @@ onMounted(async () => {
     // 等待 DOM 渲染完成后添加事件监听器
     await nextTick();
     document.addEventListener('click', handleClickOutside);
-    await loadAuthStatus();
 });
 
 onUnmounted(() => {
@@ -196,13 +171,6 @@ onUnmounted(() => {
     <div class="p-4 sm:ml-64">
         <div class="p-4 border-2 border-gray-200 border-dashed rounded-lg dark:border-gray-700">
             <div class="grid grid-cols-1 gap-4">
-                <Message v-if="mustChangePassword" severity="warn" :closable="false">
-                    <div class="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
-                        <span>{{ t('web.main.default_password_warning') }}</span>
-                        <Button size="small" icon="pi pi-key" :label="t('web.main.change_password_now')"
-                            @click="openChangePasswordDialog" />
-                    </div>
-                </Message>
                 <RouterView v-slot="{ Component }">
                     <component :is="Component" :api="api" />
                 </RouterView>

easytier-web/frontend/src/modules/api.ts

@@ -2,8 +2,6 @@ import axios, { AxiosError, AxiosInstance, AxiosResponse, InternalAxiosRequestCo
 import { type Api, NetworkTypes, Utils } from 'easytier-frontend-lib';
 import { Md5 } from 'ts-md5';
 
-const hashAuthPassword = (password: string) => Md5.hashStr(password);
-
 export interface ValidateConfigResponse {
     toml_config: string;
 }
@@ -16,16 +14,6 @@ export interface OidcConfigResponse {
 export interface LoginResponse {
     success: boolean;
     message: string;
-    mustChangePassword?: boolean;
-}
-
-export interface AuthStatusResponse {
-    must_change_password: boolean;
-}
-
-export interface CheckLoginStatusResponse {
-    loggedIn: boolean;
-    mustChangePassword: boolean;
 }
 
 export interface RegisterResponse {
@@ -94,6 +82,7 @@ export class ApiClient {
 
         // 添加响应拦截器
         this.client.interceptors.response.use((response: AxiosResponse) => {
+            console.debug('Axios Response:', response);
             return response.data; // 假设服务器返回的数据都在data属性中
         }, (error: any) => {
             if (error.response) {
@@ -119,8 +108,9 @@ export class ApiClient {
     // 注册
     public async register(data: RegisterData): Promise<RegisterResponse> {
         try {
-            data.credentials.password = hashAuthPassword(data.credentials.password);
+            data.credentials.password = Md5.hashStr(data.credentials.password);
-            await this.client.post<RegisterResponse>('/auth/register', data);
+            const response = await this.client.post<RegisterResponse>('/auth/register', data);
+            console.log("register response:", response);
             return { success: true, message: 'Register success', };
         } catch (error) {
             if (error instanceof AxiosError) {
@@ -133,13 +123,10 @@ export class ApiClient {
     // 登录
     public async login(data: Credential): Promise<LoginResponse> {
         try {
-            data.password = hashAuthPassword(data.password);
+            data.password = Md5.hashStr(data.password);
-            const response = await this.client.post<any, AuthStatusResponse>('/auth/login', data);
+            const response = await this.client.post<any>('/auth/login', data);
-            return {
+            console.log("login response:", response);
-                success: true,
+            return { success: true, message: 'Login success', };
-                message: 'Login success',
-                mustChangePassword: response.must_change_password,
-            };
         } catch (error) {
             if (error instanceof AxiosError) {
                 if (error.response?.status === 401) {
@@ -160,26 +147,16 @@ export class ApiClient {
     }
 
     public async change_password(new_password: string) {
-        await this.client.put('/auth/password', { new_password: hashAuthPassword(new_password) });
+        await this.client.put('/auth/password', { new_password: Md5.hashStr(new_password) });
     }
 
-    public async check_login_status(): Promise<CheckLoginStatusResponse> {
+    public async check_login_status() {
         try {
-            const response = await this.client.get<any, AuthStatusResponse>('/auth/check_login_status');
+            await this.client.get('/auth/check_login_status');
-            return {
+            return true;
-                loggedIn: true,
-                mustChangePassword: response.must_change_password,
-            };
         } catch (error) {
-            if (error instanceof AxiosError && error.response?.status === 401) {
+            return false;
-                return {
-                    loggedIn: false,
-                    mustChangePassword: false,
-                };
         }
-
-            throw error;
-        };
     }
 
     public async list_session() {

easytier-web/frontend/src/modules/auth-status.ts

@@ -1,18 +0,0 @@
-const MUST_CHANGE_PASSWORD_STORAGE_KEY = 'auth.mustChangePassword';
-
-export const getMustChangePasswordFlag = (): boolean | null => {
-    const value = sessionStorage.getItem(MUST_CHANGE_PASSWORD_STORAGE_KEY);
-    if (value === null) {
-        return null;
-    }
-
-    return value === 'true';
-};
-
-export const setMustChangePasswordFlag = (value: boolean) => {
-    sessionStorage.setItem(MUST_CHANGE_PASSWORD_STORAGE_KEY, value ? 'true' : 'false');
-};
-
-export const clearMustChangePasswordFlag = () => {
-    sessionStorage.removeItem(MUST_CHANGE_PASSWORD_STORAGE_KEY);
-};

easytier-web/frontend/src/modules/password-policy.ts

@@ -1,55 +0,0 @@
-export type PasswordValidationReasonKey =
-    | 'web.common.password_empty'
-    | 'web.common.password_min_length'
-    | 'web.common.password_too_weak';
-
-export interface PasswordValidationResult {
-    valid: boolean;
-    reasonKey?: PasswordValidationReasonKey;
-}
-
-const PASSWORD_MIN_LENGTH = 8;
-
-export const countPasswordClasses = (password: string) => {
-    let count = 0;
-
-    if (/[a-z]/.test(password)) {
-        count += 1;
-    }
-    if (/[A-Z]/.test(password)) {
-        count += 1;
-    }
-    if (/\d/.test(password)) {
-        count += 1;
-    }
-    if (/[^A-Za-z0-9\s]/.test(password)) {
-        count += 1;
-    }
-
-    return count;
-};
-
-export const validatePasswordStrength = (password: string): PasswordValidationResult => {
-    if (password.trim().length === 0) {
-        return {
-            valid: false,
-            reasonKey: 'web.common.password_empty',
-        };
-    }
-
-    if (password.length < PASSWORD_MIN_LENGTH) {
-        return {
-            valid: false,
-            reasonKey: 'web.common.password_min_length',
-        };
-    }
-
-    if (countPasswordClasses(password) < 2) {
-        return {
-            valid: false,
-            reasonKey: 'web.common.password_too_weak',
-        };
-    }
-
-    return { valid: true };
-};

easytier-web/src/db/entity/users.rs

@@ -11,7 +11,6 @@ pub struct Model {
     #[sea_orm(unique)]
     pub username: String,
     pub password: String,
-    pub must_change_password: bool,
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]

easytier-web/src/db/mod.rs

@@ -96,7 +96,6 @@ impl Db {
         let user_active = users::ActiveModel {
             username: Set(username.to_string()),
             password: Set(password_hash),
-            must_change_password: Set(false),
             ..Default::default()
         };
         let insert_result = users::Entity::insert(user_active).exec(&txn).await?;
@@ -281,28 +280,7 @@ mod tests {
     use easytier::{proto::api::manage::NetworkConfig, rpc_service::remote_client::Storage};
     use sea_orm::{ColumnTrait, EntityTrait, QueryFilter as _};
 
-    use crate::db::{
+    use crate::db::{entity::user_running_network_configs, Db, ListNetworkProps};
-        entity::{user_running_network_configs, users},
-        Db, ListNetworkProps,
-    };
-
-    #[tokio::test]
-    async fn created_users_default_to_not_requiring_password_change() {
-        let db = Db::memory_db().await;
-
-        let user = db
-            .create_user_and_join_users_group("created-user", "pre-hashed-password".to_string())
-            .await
-            .unwrap();
-
-        let stored = users::Entity::find_by_id(user.id)
-            .one(db.orm_db())
-            .await
-            .unwrap()
-            .unwrap();
-
-        assert!(!stored.must_change_password);
-    }
 
     #[tokio::test]
     async fn test_user_network_config_management() {

easytier-web/src/migrator/m20260405_000003_add_must_change_password.rs

@@ -1,129 +0,0 @@
-use sea_orm_migration::prelude::*;
-
-pub struct Migration;
-
-const DEFAULT_USER_PASSWORD_HASH: &str =
-    "$argon2i$v=19$m=16,t=2,p=1$aGVyRDBrcnRycnlaMDhkbw$449SEcv/qXf+0fnI9+fYVQ";
-const DEFAULT_ADMIN_PASSWORD_HASH: &str =
-    "$argon2i$v=19$m=16,t=2,p=1$bW5idXl0cmY$61n+JxL4r3dwLPAEDlDdtg";
-
-#[derive(DeriveIden)]
-enum Users {
-    Table,
-    Username,
-    Password,
-    MustChangePassword,
-}
-
-impl MigrationName for Migration {
-    fn name(&self) -> &str {
-        "m20260405_000003_add_must_change_password"
-    }
-}
-
-#[async_trait::async_trait]
-impl MigrationTrait for Migration {
-    async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
-        manager
-            .alter_table(
-                Table::alter()
-                    .table(Users::Table)
-                    .add_column(
-                        ColumnDef::new(Users::MustChangePassword)
-                            .boolean()
-                            .not_null()
-                            .default(false),
-                    )
-                    .to_owned(),
-            )
-            .await?;
-
-        manager
-            .exec_stmt(
-                Query::update()
-                    .table(Users::Table)
-                    .value(Users::MustChangePassword, true)
-                    .cond_where(any![
-                        Expr::col(Users::Username)
-                            .eq("admin")
-                            .and(Expr::col(Users::Password).eq(DEFAULT_ADMIN_PASSWORD_HASH)),
-                        Expr::col(Users::Username)
-                            .eq("user")
-                            .and(Expr::col(Users::Password).eq(DEFAULT_USER_PASSWORD_HASH)),
-                    ])
-                    .to_owned(),
-            )
-            .await?;
-
-        Ok(())
-    }
-
-    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
-        manager
-            .alter_table(
-                Table::alter()
-                    .table(Users::Table)
-                    .drop_column(Users::MustChangePassword)
-                    .to_owned(),
-            )
-            .await?;
-
-        Ok(())
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use sea_orm::{ColumnTrait, EntityTrait, QueryFilter as _, SqlxSqliteConnector};
-    use sea_orm_migration::prelude::SchemaManager;
-    use sqlx::sqlite::SqlitePoolOptions;
-
-    use super::{Migration, MigrationTrait, DEFAULT_USER_PASSWORD_HASH};
-    use crate::db::entity::users;
-
-    async fn find_user(db: &sea_orm::DatabaseConnection, username: &str) -> users::Model {
-        users::Entity::find()
-            .filter(users::Column::Username.eq(username))
-            .one(db)
-            .await
-            .unwrap()
-            .unwrap()
-    }
-
-    #[tokio::test]
-    async fn migration_only_marks_seeded_accounts_still_using_default_passwords() {
-        let pool = SqlitePoolOptions::new()
-            .max_connections(1)
-            .connect("sqlite::memory:")
-            .await
-            .unwrap();
-
-        sqlx::query(
-            "CREATE TABLE users (
-                id INTEGER PRIMARY KEY AUTOINCREMENT,
-                username TEXT NOT NULL UNIQUE,
-                password TEXT NOT NULL
-            )",
-        )
-        .execute(&pool)
-        .await
-        .unwrap();
-
-        let changed_admin_password = password_auth::generate_hash("already-changed");
-
-        sqlx::query("INSERT INTO users (username, password) VALUES (?, ?), (?, ?)")
-            .bind("admin")
-            .bind(changed_admin_password)
-            .bind("user")
-            .bind(DEFAULT_USER_PASSWORD_HASH)
-            .execute(&pool)
-            .await
-            .unwrap();
-
-        let db = SqlxSqliteConnector::from_sqlx_sqlite_pool(pool);
-        Migration.up(&SchemaManager::new(&db)).await.unwrap();
-
-        assert!(!find_user(&db, "admin").await.must_change_password);
-        assert!(find_user(&db, "user").await.must_change_password);
-    }
-}

easytier-web/src/migrator/mod.rs

@@ -2,7 +2,6 @@ use sea_orm_migration::prelude::*;
 
 mod m20241029_000001_init;
 mod m20260403_000002_scope_network_config_unique;
-mod m20260405_000003_add_must_change_password;
 
 pub struct Migrator;
 
@@ -12,7 +11,6 @@ impl MigratorTrait for Migrator {
         vec![
             Box::new(m20241029_000001_init::Migration),
             Box::new(m20260403_000002_scope_network_config_unique::Migration),
-            Box::new(m20260405_000003_add_must_change_password::Migration),
         ]
     }
 }

easytier-web/src/restful/auth.rs

@@ -4,7 +4,8 @@ use axum::{
     Router,
 };
 use axum_login::login_required;
-use serde::Serialize;
+use axum_messages::Message;
+use serde::{Deserialize, Serialize};
 
 use crate::restful::users::Backend;
 
@@ -17,9 +18,9 @@ use super::{
     AppStateInner,
 };
 
-#[derive(Debug, Serialize)]
+#[derive(Debug, Deserialize, Serialize)]
-pub struct AuthStatusResponse {
+pub struct LoginResult {
-    must_change_password: bool,
+    messages: Vec<Message>,
 }
 
 pub fn router() -> Router<AppStateInner> {
@@ -39,15 +40,12 @@ pub fn router() -> Router<AppStateInner> {
 }
 
 mod put {
-    use crate::restful::{
-        other_error,
-        users::{ChangePassword, ChangePasswordError},
-        HttpHandleError,
-    };
     use axum::Json;
     use axum_login::AuthUser;
     use easytier::proto::common::Void;
 
+    use crate::restful::{other_error, users::ChangePassword, HttpHandleError};
+
     use super::*;
 
     pub async fn change_password(
@@ -60,21 +58,15 @@ mod put {
             .await
         {
             tracing::error!("Failed to change password: {:?}", e);
-            let (status, message) = match &e {
+            return Err((
-                ChangePasswordError::EmptyPassword => {
-                    (StatusCode::BAD_REQUEST, "password cannot be empty")
-                }
-                ChangePasswordError::UserNotFound | ChangePasswordError::Db(_) => (
                 StatusCode::INTERNAL_SERVER_ERROR,
-                    "failed to change password",
+                Json::from(other_error(format!("{:?}", e))),
-                ),
+            ));
-            };
-            return Err((status, Json::from(other_error(message.to_string()))));
         }
 
         let _ = auth_session.logout().await;
 
-        Ok(Json(Void::default()))
+        Ok(Void::default().into())
     }
 }
 
@@ -94,7 +86,7 @@ mod post {
     pub async fn login(
         mut auth_session: AuthSession,
         Json(creds): Json<Credentials>,
-    ) -> Result<Json<AuthStatusResponse>, HttpHandleError> {
+    ) -> Result<Json<Void>, HttpHandleError> {
         let user = match auth_session.authenticate(creds.clone()).await {
             Ok(Some(user)) => user,
             Ok(None) => {
@@ -118,9 +110,7 @@ mod post {
             ));
         }
 
-        Ok(Json(AuthStatusResponse {
+        Ok(Void::default().into())
-            must_change_password: user.db_user.must_change_password,
-        }))
     }
 
     pub async fn register(
@@ -199,11 +189,9 @@ mod get {
 
     pub async fn check_login_status(
         auth_session: AuthSession,
-    ) -> Result<Json<AuthStatusResponse>, HttpHandleError> {
+    ) -> Result<Json<Void>, HttpHandleError> {
-        if let Some(user) = auth_session.user {
+        if auth_session.user.is_some() {
-            Ok(Json(AuthStatusResponse {
+            Ok(Json(Void::default()))
-                must_change_password: user.db_user.must_change_password,
-            }))
         } else {
             Err((
                 StatusCode::UNAUTHORIZED,

easytier-web/src/restful/users.rs

@@ -12,8 +12,6 @@ use tokio::task;
 
 use crate::db::{self, entity};
 
-const EMPTY_PASSWORD_MD5: &str = "d41d8cd98f00b204e9800998ecf8427e";
-
 #[derive(Clone, Serialize, Deserialize)]
 pub struct User {
     pub(crate) db_user: entity::users::Model,
@@ -66,18 +64,6 @@ pub struct ChangePassword {
     pub new_password: String,
 }
 
-#[derive(Debug, thiserror::Error)]
-pub enum ChangePasswordError {
-    #[error("Password cannot be empty")]
-    EmptyPassword,
-
-    #[error("User not found")]
-    UserNotFound,
-
-    #[error(transparent)]
-    Db(#[from] sea_orm::DbErr),
-}
-
 #[derive(Debug, Clone)]
 pub struct Backend {
     db: db::Db,
@@ -133,14 +119,7 @@ impl Backend {
         &self,
         id: <User as AuthUser>::Id,
         req: &ChangePassword,
-    ) -> Result<(), ChangePasswordError> {
+    ) -> anyhow::Result<()> {
-        // With the existing pre-hashed protocol the backend can only reject the
-        // exact empty-string digest; whitespace-only passwords must be blocked
-        // on the client before hashing.
-        if req.new_password == EMPTY_PASSWORD_MD5 {
-            return Err(ChangePasswordError::EmptyPassword);
-        }
-
         let hashed_password = password_auth::generate_hash(req.new_password.as_str());
 
         use entity::users;
@@ -148,10 +127,9 @@ impl Backend {
         let mut user = users::Entity::find_by_id(id)
             .one(self.db.orm_db())
             .await?
-            .ok_or(ChangePasswordError::UserNotFound)?
+            .ok_or(anyhow::anyhow!("User not found"))?
             .into_active_model();
         user.password = Set(hashed_password.clone());
-        user.must_change_password = Set(false);
 
         entity::users::Entity::update(user)
             .exec(self.db.orm_db())
@@ -264,107 +242,6 @@ impl AuthzBackend for Backend {
     }
 }
 
-#[cfg(test)]
-mod tests {
-    use axum_login::AuthnBackend;
-    use sea_orm::{ColumnTrait, EntityTrait, QueryFilter as _};
-
-    use super::{Backend, ChangePassword, ChangePasswordError, EMPTY_PASSWORD_MD5};
-    use crate::db::{entity::users, Db};
-
-    async fn find_user(db: &Db, username: &str) -> users::Model {
-        users::Entity::find()
-            .filter(users::Column::Username.eq(username))
-            .one(db.orm_db())
-            .await
-            .unwrap()
-            .unwrap()
-    }
-
-    #[tokio::test]
-    async fn seeded_default_users_require_password_change() {
-        let db = Db::memory_db().await;
-
-        assert!(find_user(&db, "admin").await.must_change_password);
-        assert!(find_user(&db, "user").await.must_change_password);
-    }
-
-    #[tokio::test]
-    async fn auto_created_user_does_not_require_password_change() {
-        let db = Db::memory_db().await;
-
-        db.auto_create_user("oidc-user").await.unwrap();
-
-        assert!(!find_user(&db, "oidc-user").await.must_change_password);
-    }
-
-    #[tokio::test]
-    async fn change_password_clears_must_change_password_flag() {
-        let db = Db::memory_db().await;
-        let backend = Backend::new(db.clone());
-        let admin = find_user(&db, "admin").await;
-
-        backend
-            .change_password(
-                admin.id,
-                &ChangePassword {
-                    new_password: "f1086f68460b65771de50a970cd1242d".to_string(),
-                },
-            )
-            .await
-            .unwrap();
-
-        assert!(!find_user(&db, "admin").await.must_change_password);
-    }
-
-    #[tokio::test]
-    async fn change_password_rejects_empty_password_digest() {
-        let db = Db::memory_db().await;
-        let backend = Backend::new(db.clone());
-        let admin = find_user(&db, "admin").await;
-
-        let error = backend
-            .change_password(
-                admin.id,
-                &ChangePassword {
-                    new_password: EMPTY_PASSWORD_MD5.to_string(),
-                },
-            )
-            .await
-            .unwrap_err();
-
-        assert!(matches!(error, ChangePasswordError::EmptyPassword));
-        assert!(find_user(&db, "admin").await.must_change_password);
-    }
-
-    #[tokio::test]
-    async fn can_authenticate_with_new_password_after_change() {
-        let db = Db::memory_db().await;
-        let backend = Backend::new(db.clone());
-        let admin = find_user(&db, "admin").await;
-
-        backend
-            .change_password(
-                admin.id,
-                &ChangePassword {
-                    new_password: "f1086f68460b65771de50a970cd1242d".to_string(),
-                },
-            )
-            .await
-            .unwrap();
-
-        let authenticated = backend
-            .authenticate(super::Credentials {
-                username: "admin".to_string(),
-                password: "f1086f68460b65771de50a970cd1242d".to_string(),
-            })
-            .await
-            .unwrap();
-
-        assert!(authenticated.is_some());
-    }
-}
-
 // We use a type alias for convenience.
 //
 // Note that we've supplied our concrete backend here.

easytier/src/connector/dns_connector.rs

@@ -194,11 +194,11 @@ impl super::TunnelConnector for DnsTunnelConnector {
             TunnelInfo {
                 local_addr: info.local_addr.clone(),
                 remote_addr: Some(self.addr.clone().into()),
-                tunnel_type: format!(
+                resolved_remote_addr: info
-                    "{}-{}",
+                    .resolved_remote_addr
-                    self.addr.scheme(),
+                    .clone()
-                    info.remote_addr.unwrap_or_default()
+                    .or(info.remote_addr.clone()),
-                ),
+                tunnel_type: format!("{}-{}", self.addr.scheme(), info.tunnel_type),
             },
         )))
     }

easytier/src/connector/http_connector.rs

@@ -229,11 +229,11 @@ impl super::TunnelConnector for HttpTunnelConnector {
             TunnelInfo {
                 local_addr: info.local_addr.clone(),
                 remote_addr: Some(self.addr.clone().into()),
-                tunnel_type: format!(
+                resolved_remote_addr: info
-                    "{:?}-{}",
+                    .resolved_remote_addr
-                    self.redirect_type,
+                    .clone()
-                    info.remote_addr.unwrap_or_default()
+                    .or(info.remote_addr.clone()),
-                ),
+                tunnel_type: format!("{}-{}", self.addr.scheme(), info.tunnel_type),
             },
         )))
     }
@@ -353,6 +353,8 @@ mod tests {
         let info = t.info().unwrap();
         let remote_addr = info.remote_addr.unwrap();
         assert_eq!(remote_addr, test_url.into());
+        let resolved_remote_addr = info.resolved_remote_addr.unwrap();
+        assert_eq!(resolved_remote_addr.url, "tcp://127.0.0.1:25888");
 
         tokio::join!(task).0.unwrap();
     }

easytier/src/easytier-cli.rs

@@ -1404,7 +1404,7 @@ impl<'a> CommandHandler<'a> {
                                 "remote_addr: {}, rx_bytes: {}, tx_bytes: {}, latency_us: {}",
                                 conn.tunnel
                                     .as_ref()
-                                    .map(|t| t.remote_addr.clone().unwrap_or_default())
+                                    .and_then(|t| t.display_remote_addr())
                                     .unwrap_or_default(),
                                 conn.stats.as_ref().map(|s| s.rx_bytes).unwrap_or_default(),
                                 conn.stats.as_ref().map(|s| s.tx_bytes).unwrap_or_default(),

easytier/src/instance/dns_server/tests.rs

@@ -232,6 +232,7 @@ async fn test_magic_dns_update_replaces_records_for_same_client() {
         remote_addr: Some(crate::proto::common::Url {
             url: "tcp://127.0.0.1:54321".to_string(),
         }),
+        resolved_remote_addr: None,
     }));
 
     dns_server_inst
@@ -299,6 +300,7 @@ async fn test_magic_dns_update_replaces_records_for_same_client() {
         remote_addr: Some(crate::proto::common::Url {
             url: "tcp://127.0.0.1:54321".to_string(),
         }),
+        resolved_remote_addr: None,
     }));
 
     dns_server_inst

easytier/src/instance/instance.rs

@@ -867,7 +867,9 @@ impl Instance {
         tokio::spawn(async move {
             let mut output_tx = Some(first_round_output);
             loop {
-                let Some(peer_manager) = peer_mgr.upgrade() else {
+                let close_notifier = Arc::new(Notify::new());
+                {
+                    let Some(peer_mgr) = peer_mgr.upgrade() else {
                         tracing::warn!("peer manager is dropped, stop static ip check.");
                         if let Some(output_tx) = output_tx.take() {
                             let _ = output_tx.send(Err(Error::Unknown));
@@ -876,10 +878,9 @@ impl Instance {
                         return;
                     };
 
-                let close_notifier = Arc::new(Notify::new());
                     let mut new_nic_ctx = NicCtx::new(
-                    peer_manager.get_global_ctx(),
+                        peer_mgr.get_global_ctx(),
-                    &peer_manager,
+                        &peer_mgr,
                         peer_packet_receiver.clone(),
                         close_notifier.clone(),
                     );
@@ -899,7 +900,7 @@ impl Instance {
                     {
                         let ifname = new_nic_ctx.ifname().await;
                         let dns_runner = if let Some(ipv4) = ipv4_addr {
-                        Self::create_magic_dns_runner(peer_manager, ifname, ipv4)
+                            Self::create_magic_dns_runner(peer_mgr, ifname, ipv4)
                         } else {
                             None
                         };
@@ -907,6 +908,7 @@ impl Instance {
                     }
                     #[cfg(not(feature = "magic-dns"))]
                     Self::use_new_nic_ctx(nic_ctx.clone(), new_nic_ctx).await;
+                }
 
                 if let Some(output_tx) = output_tx.take() {
                     let _ = output_tx.send(Ok(()));

easytier/src/peers/peer_ospf_route.rs

@@ -659,7 +659,8 @@ impl SyncedRouteInfo {
         }
     }
 
-    fn update_foreign_network(&self, foreign_network: &RouteForeignNetworkInfos) {
+    fn update_foreign_network(&self, foreign_network: &RouteForeignNetworkInfos) -> bool {
+        let mut changed = false;
         for item in foreign_network.infos.iter().map(Clone::clone) {
             let Some(key) = item.key else {
                 continue;
@@ -675,10 +676,15 @@ impl SyncedRouteInfo {
                 .and_modify(|old_entry| {
                     if entry.version > old_entry.version {
                         *old_entry = entry.clone();
+                        changed = true;
                     }
                 })
-                .or_insert_with(|| entry.clone());
+                .or_insert_with(|| {
+                    changed = true;
+                    entry.clone()
+                });
         }
+        changed
     }
 
     fn update_my_peer_info(
@@ -2847,8 +2853,14 @@ impl RouteSessionManager {
         dst_peer_id: PeerId,
         mut sync_now: tokio::sync::broadcast::Receiver<()>,
     ) {
+        const RETRY_BASE_MS: u64 = 50;
+        const RETRY_MAX_MS: u64 = 5000;
+
         let mut last_sync = Instant::now();
         let mut last_clean_dst_saved_map = Instant::now();
+        // Keep retry_delay_ms across outer iterations so that rapid
+        // connect/disconnect flaps don't fully reset the backoff.
+        let mut retry_delay_ms = RETRY_BASE_MS;
         loop {
             loop {
                 let Some(service_impl) = service_impl.clone().upgrade() else {
@@ -2875,13 +2887,18 @@ impl RouteSessionManager {
                         last_clean_dst_saved_map = Instant::now();
                         service_impl.clean_dst_saved_map(dst_peer_id);
                     }
+                    // Successful sync: decay backoff towards base so the next
+                    // real failure still starts at a reasonable level, but
+                    // don't fully reset to avoid 50ms bursts during flapping.
+                    retry_delay_ms = (retry_delay_ms / 2).max(RETRY_BASE_MS);
                     break;
                 }
 
                 drop(service_impl);
                 drop(peer_rpc);
 
-                tokio::time::sleep(Duration::from_millis(50)).await;
+                tokio::time::sleep(Duration::from_millis(retry_delay_ms)).await;
+                retry_delay_ms = (retry_delay_ms * 2).min(RETRY_MAX_MS);
             }
 
             sync_now = sync_now.resubscribe();
@@ -3214,17 +3231,18 @@ impl RouteSessionManager {
             service_impl.update_route_table_and_cached_local_conn_bitmap();
         }
 
+        let mut foreign_network_changed = false;
         if let Some(foreign_network) = &foreign_network {
             // Step 9b: credential peers' foreign_network_infos are always ignored
             if !from_is_credential {
-                service_impl
+                foreign_network_changed = service_impl
                     .synced_route_info
                     .update_foreign_network(foreign_network);
                 session.update_dst_saved_foreign_network_version(foreign_network, from_peer_id);
             }
         }
 
-        if need_update_route_table || foreign_network.is_some() {
+        if need_update_route_table || foreign_network_changed {
             service_impl.update_foreign_network_owner_map();
         }
 
@@ -3243,7 +3261,13 @@ impl RouteSessionManager {
             .disconnect_untrusted_peers(&untrusted_peers)
             .await;
 
+        // Only trigger reverse sync when we actually received new data that
+        // needs to be propagated to other peers.  Previously this was
+        // unconditional, which created an A→B→A→B ping-pong storm even when
+        // there was nothing new to propagate.
+        if need_update_route_table || foreign_network_changed {
             self.sync_now("sync_route_info");
+        }
 
         Ok(SyncRouteInfoResponse {
             is_initiator,

easytier/src/proto/api.rs

@@ -149,23 +149,8 @@ pub mod instance {
             ret
         }
 
-        fn is_tunnel_ipv6(tunnel_info: &super::super::common::TunnelInfo) -> bool {
-            let Some(local_addr) = &tunnel_info.local_addr else {
-                return false;
-            };
-
-            let u: url::Url = local_addr.clone().into();
-            u.host()
-                .map(|h| matches!(h, url::Host::Ipv6(_)))
-                .unwrap_or(false)
-        }
-
         fn get_tunnel_proto_str(tunnel_info: &super::super::common::TunnelInfo) -> String {
-            if Self::is_tunnel_ipv6(tunnel_info) {
+            tunnel_info.display_tunnel_type()
-                format!("{}6", tunnel_info.tunnel_type)
-            } else {
-                tunnel_info.tunnel_type.clone()
-            }
         }
 
         pub fn get_conn_protos(&self) -> Option<Vec<String>> {

easytier/src/proto/common.proto

@@ -201,6 +201,7 @@ message TunnelInfo {
   string tunnel_type = 1;
   common.Url local_addr = 2;
   common.Url remote_addr = 3;
+  common.Url resolved_remote_addr = 4;
 }
 
 message StunInfo {

easytier/src/proto/common.rs

@@ -5,8 +5,9 @@ use std::{
 
 use anyhow::Context;
 use base64::{prelude::BASE64_STANDARD, Engine as _};
+use strum::VariantArray;
 
-use crate::tunnel::packet_def::CompressorAlgo;
+use crate::tunnel::{packet_def::CompressorAlgo, IpScheme};
 
 include!(concat!(env!("OUT_DIR"), "/common.rs"));
 
@@ -284,6 +285,105 @@ impl fmt::Display for Url {
     }
 }
 
+fn split_tunnel_scheme(raw_scheme: &str) -> Option<(&str, &'static str, bool)> {
+    for scheme in IpScheme::VARIANTS {
+        let scheme: &'static str = scheme.into();
+        if let Some(base) = raw_scheme.strip_suffix('6') {
+            if let Some(prefix) = base.strip_suffix(scheme) {
+                if prefix.is_empty() || prefix.ends_with('-') {
+                    return Some((prefix, scheme, true));
+                }
+            }
+        }
+
+        if let Some(prefix) = raw_scheme.strip_suffix(scheme) {
+            if prefix.is_empty() || prefix.ends_with('-') {
+                return Some((prefix, scheme, false));
+            }
+        }
+    }
+
+    None
+}
+
+fn normalize_tunnel_scheme(raw_scheme: &str, is_ipv6: bool) -> Option<String> {
+    let (prefix, scheme, had_ipv6_suffix) = split_tunnel_scheme(raw_scheme)?;
+    let suffix = if is_ipv6 || had_ipv6_suffix { "6" } else { "" };
+    Some(format!("{prefix}{scheme}{suffix}"))
+}
+
+fn infer_tunnel_ipv6(raw: &str) -> Option<bool> {
+    let (_, rest) = raw.split_once("://")?;
+    if rest.starts_with('[') {
+        return Some(true);
+    }
+
+    match url::Url::parse(raw).ok()?.host() {
+        Some(url::Host::Ipv4(_)) => Some(false),
+        Some(url::Host::Ipv6(_)) => Some(true),
+        Some(url::Host::Domain(_)) | None => None,
+    }
+}
+
+fn normalize_tunnel_port(raw_port: &str, is_ipv6: bool) -> Option<u16> {
+    if let Ok(port) = raw_port.parse::<u16>() {
+        return Some(port);
+    }
+
+    if is_ipv6 && raw_port.ends_with('6') {
+        return raw_port[..raw_port.len() - 1].parse::<u16>().ok();
+    }
+
+    None
+}
+
+fn normalize_tunnel_url(raw: &str, fallback_ipv6: Option<bool>) -> Option<String> {
+    let (raw_scheme, rest) = raw.split_once("://")?;
+
+    if let Some(rest) = rest.strip_prefix('[') {
+        let (host, remainder) = rest.split_once(']')?;
+        let scheme = normalize_tunnel_scheme(raw_scheme, true)?;
+
+        if remainder.is_empty() {
+            return Some(format!("{scheme}://[{host}]"));
+        }
+
+        let raw_port = remainder.strip_prefix(':')?;
+        let port = normalize_tunnel_port(raw_port, true)?;
+        return Some(format!("{scheme}://[{host}]:{port}"));
+    }
+
+    let is_ipv6 = infer_tunnel_ipv6(raw).or(fallback_ipv6).unwrap_or(false);
+    let scheme = normalize_tunnel_scheme(raw_scheme, is_ipv6)?;
+
+    if let Ok(url) = url::Url::parse(raw) {
+        let host = match url.host()? {
+            url::Host::Ipv4(host) => host.to_string(),
+            url::Host::Ipv6(host) => format!("[{host}]"),
+            url::Host::Domain(host) => host.to_string(),
+        };
+
+        return Some(match url.port_or_known_default() {
+            Some(port) => format!("{scheme}://{host}:{port}"),
+            None => format!("{scheme}://{host}"),
+        });
+    }
+
+    let (host, raw_port) = rest.rsplit_once(':')?;
+    let port = normalize_tunnel_port(raw_port, is_ipv6)?;
+    Some(format!("{scheme}://{host}:{port}"))
+}
+
+impl Url {
+    pub fn is_ipv6_tunnel_endpoint(&self) -> bool {
+        infer_tunnel_ipv6(&self.url).unwrap_or(false)
+    }
+
+    pub fn normalized_tunnel_display(&self) -> String {
+        normalize_tunnel_url(&self.url, None).unwrap_or_else(|| self.url.clone())
+    }
+}
+
 impl From<std::net::SocketAddr> for SocketAddr {
     fn from(value: std::net::SocketAddr) -> Self {
         match value {
@@ -325,6 +425,38 @@ impl Display for SocketAddr {
     }
 }
 
+impl TunnelInfo {
+    pub fn effective_remote_addr(&self) -> Option<&Url> {
+        self.resolved_remote_addr
+            .as_ref()
+            .or(self.remote_addr.as_ref())
+    }
+
+    pub fn display_tunnel_type(&self) -> String {
+        let is_ipv6 = infer_tunnel_ipv6(&self.tunnel_type).or_else(|| {
+            self.resolved_remote_addr
+                .as_ref()
+                .or(self.local_addr.as_ref())
+                .or(self.remote_addr.as_ref())
+                .map(Url::is_ipv6_tunnel_endpoint)
+        });
+
+        if self.tunnel_type.contains("://") {
+            normalize_tunnel_url(&self.tunnel_type, is_ipv6)
+                .unwrap_or_else(|| self.tunnel_type.clone())
+        } else {
+            is_ipv6
+                .and_then(|is_ipv6| normalize_tunnel_scheme(&self.tunnel_type, is_ipv6))
+                .unwrap_or_else(|| self.tunnel_type.clone())
+        }
+    }
+
+    pub fn display_remote_addr(&self) -> Option<String> {
+        self.effective_remote_addr()
+            .map(Url::normalized_tunnel_display)
+    }
+}
+
 impl TryFrom<CompressionAlgoPb> for CompressorAlgo {
     type Error = anyhow::Error;
 
@@ -397,3 +529,149 @@ impl SecureModeConfig {
         Ok(x25519_dalek::PublicKey::from(k))
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::{normalize_tunnel_url, TunnelInfo, Url};
+
+    fn assert_ipv6_tunnel_normalization(scheme: &str, port: u16) {
+        let expected = format!("{scheme}6://[2001:db8::1]:{port}");
+        assert_eq!(
+            normalize_tunnel_url(&format!("{scheme}://[2001:db8::1]:{port}"), None).as_deref(),
+            Some(expected.as_str())
+        );
+    }
+
+    #[test]
+    fn normalize_plain_ipv6_tunnel_url() {
+        let url = Url {
+            url: "tcp://[2001:db8::1]:11010".to_string(),
+        };
+
+        assert_eq!(
+            url.normalized_tunnel_display(),
+            "tcp6://[2001:db8::1]:11010"
+        );
+        assert!(url.is_ipv6_tunnel_endpoint());
+    }
+
+    #[test]
+    fn normalize_all_enabled_ipv6_tunnel_urls() {
+        assert_ipv6_tunnel_normalization("tcp", 11010);
+        assert_ipv6_tunnel_normalization("udp", 11010);
+
+        #[cfg(feature = "wireguard")]
+        assert_ipv6_tunnel_normalization("wg", 11011);
+
+        #[cfg(feature = "quic")]
+        assert_ipv6_tunnel_normalization("quic", 11012);
+
+        #[cfg(feature = "websocket")]
+        assert_ipv6_tunnel_normalization("ws", 80);
+
+        #[cfg(feature = "websocket")]
+        assert_ipv6_tunnel_normalization("wss", 443);
+
+        #[cfg(feature = "faketcp")]
+        assert_ipv6_tunnel_normalization("faketcp", 11013);
+    }
+
+    #[test]
+    fn normalize_composite_ipv6_tunnel_url() {
+        assert_eq!(
+            normalize_tunnel_url("txt-tcp://[2001:db8::1]:11010", None).as_deref(),
+            Some("txt-tcp6://[2001:db8::1]:11010")
+        );
+    }
+
+    #[test]
+    fn recover_malformed_composite_ipv6_tunnel_url() {
+        assert_eq!(
+            normalize_tunnel_url("txt-tcp://[2001:db8::1]:110106", None).as_deref(),
+            Some("txt-tcp6://[2001:db8::1]:11010")
+        );
+    }
+
+    #[test]
+    fn keep_normalized_ipv6_tunnel_url_stable() {
+        assert_eq!(
+            normalize_tunnel_url("tcp6://[2001:db8::1]:11010", None).as_deref(),
+            Some("tcp6://[2001:db8::1]:11010")
+        );
+    }
+
+    #[test]
+    fn normalize_ipv6_tunnel_url_without_explicit_port() {
+        assert_eq!(
+            normalize_tunnel_url("tcp://[2001:db8::1]", None).as_deref(),
+            Some("tcp6://[2001:db8::1]")
+        );
+    }
+
+    #[test]
+    fn keep_domain_host_unbracketed_when_ipv6_falls_back() {
+        assert_eq!(
+            normalize_tunnel_url("tcp://localhost:11010", Some(true)).as_deref(),
+            Some("tcp6://localhost:11010")
+        );
+    }
+
+    #[test]
+    fn tunnel_info_display_tunnel_type_preserves_composite_prefix() {
+        let tunnel = TunnelInfo {
+            tunnel_type: "txt-tcp://[2001:db8::2]:110106".to_string(),
+            local_addr: None,
+            remote_addr: Some(Url {
+                url: "txt://et.example.com".to_string(),
+            }),
+            resolved_remote_addr: None,
+        };
+
+        assert_eq!(
+            tunnel.display_tunnel_type(),
+            "txt-tcp6://[2001:db8::2]:11010"
+        );
+    }
+
+    #[test]
+    fn tunnel_info_display_tunnel_type_uses_remote_addr_fallback() {
+        let tunnel = TunnelInfo {
+            tunnel_type: "tcp".to_string(),
+            local_addr: None,
+            remote_addr: Some(Url {
+                url: "tcp://[2001:db8::2]:11010".to_string(),
+            }),
+            resolved_remote_addr: None,
+        };
+
+        assert_eq!(tunnel.display_tunnel_type(), "tcp6");
+        assert_eq!(
+            tunnel.display_remote_addr().as_deref(),
+            Some("tcp6://[2001:db8::2]:11010")
+        );
+    }
+
+    #[test]
+    fn tunnel_info_prefers_resolved_remote_addr() {
+        let tunnel = TunnelInfo {
+            tunnel_type: "txt-tcp".to_string(),
+            local_addr: None,
+            remote_addr: Some(Url {
+                url: "txt://et.example.com".to_string(),
+            }),
+            resolved_remote_addr: Some(Url {
+                url: "tcp://[2001:db8::3]:11010".to_string(),
+            }),
+        };
+
+        assert_eq!(tunnel.display_tunnel_type(), "txt-tcp6");
+        assert_eq!(
+            tunnel.display_remote_addr().as_deref(),
+            Some("tcp6://[2001:db8::3]:11010")
+        );
+        assert_eq!(
+            tunnel.effective_remote_addr().map(|url| url.url.as_str()),
+            Some("tcp://[2001:db8::3]:11010")
+        );
+    }
+}

easytier/src/tunnel/fake_tcp/mod.rs

@@ -249,6 +249,13 @@ impl TunnelListener for FakeTcpTunnelListener {
                 )
                 .into(),
             ),
+            resolved_remote_addr: Some(
+                crate::tunnel::build_url_from_socket_addr(
+                    &socket.remote_addr().to_string(),
+                    "faketcp",
+                )
+                .into(),
+            ),
         };
 
         // We treat the fake tcp socket as a datagram tunnel directly
@@ -366,6 +373,10 @@ impl TunnelConnector for FakeTcpTunnelConnector {
                 .into(),
             ),
             remote_addr: Some(self.addr.clone().into()),
+            resolved_remote_addr: Some(
+                crate::tunnel::build_url_from_socket_addr(&remote_addr.to_string(), "faketcp")
+                    .into(),
+            ),
         };
 
         let socket = Arc::new(socket);

easytier/src/tunnel/mod.rs

@@ -11,7 +11,7 @@ use derive_more::{From, TryInto};
 use futures::{Sink, Stream};
 use socket2::Protocol;
 use std::fmt::Debug;
-use strum::{Display, EnumString, VariantArray};
+use strum::{Display, EnumString, IntoStaticStr, VariantArray};
 use tokio::time::error::Elapsed;
 
 use self::packet_def::ZCPacket;
@@ -284,7 +284,7 @@ struct IpSchemeAttributes {
     port_offset: u16,
 }
 
-#[derive(Debug, Clone, Copy, PartialEq, Display, EnumString, VariantArray)]
+#[derive(Debug, Clone, Copy, PartialEq, Display, EnumString, IntoStaticStr, VariantArray)]
 #[strum(serialize_all = "lowercase")]
 pub enum IpScheme {
     Tcp,

easytier/src/tunnel/quic.rs

@@ -175,6 +175,9 @@ impl QuicTunnelListener {
             remote_addr: Some(
                 super::build_url_from_socket_addr(&remote_addr.to_string(), "quic").into(),
             ),
+            resolved_remote_addr: Some(
+                super::build_url_from_socket_addr(&remote_addr.to_string(), "quic").into(),
+            ),
         };
 
         Ok(Box::new(TunnelWrapper::new(
@@ -280,6 +283,10 @@ impl TunnelConnector for QuicTunnelConnector {
                 super::build_url_from_socket_addr(&local_addr.to_string(), "quic").into(),
             ),
             remote_addr: Some(self.addr.clone().into()),
+            resolved_remote_addr: Some(
+                super::build_url_from_socket_addr(&connection.remote_address().to_string(), "quic")
+                    .into(),
+            ),
         };
 
         let arc_conn = Arc::new(ConnWrapper { conn: connection });

easytier/src/tunnel/ring.rs

@@ -214,6 +214,9 @@ fn get_tunnel_for_client(conn: Arc<Connection>) -> impl Tunnel {
             tunnel_type: "ring".to_owned(),
             local_addr: Some(build_url_from_socket_addr(&conn.client.id.into(), "ring").into()),
             remote_addr: Some(build_url_from_socket_addr(&conn.server.id.into(), "ring").into()),
+            resolved_remote_addr: Some(
+                build_url_from_socket_addr(&conn.server.id.into(), "ring").into(),
+            ),
         }),
     )
 }
@@ -226,6 +229,9 @@ fn get_tunnel_for_server(conn: Arc<Connection>) -> impl Tunnel {
             tunnel_type: "ring".to_owned(),
             local_addr: Some(build_url_from_socket_addr(&conn.server.id.into(), "ring").into()),
             remote_addr: Some(build_url_from_socket_addr(&conn.client.id.into(), "ring").into()),
+            resolved_remote_addr: Some(
+                build_url_from_socket_addr(&conn.client.id.into(), "ring").into(),
+            ),
         }),
     )
 }

easytier/src/tunnel/tcp.rs

@@ -41,6 +41,9 @@ impl TcpTunnelListener {
             remote_addr: Some(
                 super::build_url_from_socket_addr(&stream.peer_addr()?.to_string(), "tcp").into(),
             ),
+            resolved_remote_addr: Some(
+                super::build_url_from_socket_addr(&stream.peer_addr()?.to_string(), "tcp").into(),
+            ),
         };
 
         let (r, w) = stream.into_split();
@@ -117,6 +120,9 @@ fn get_tunnel_with_tcp_stream(
             super::build_url_from_socket_addr(&stream.local_addr()?.to_string(), "tcp").into(),
         ),
         remote_addr: Some(remote_url.into()),
+        resolved_remote_addr: Some(
+            super::build_url_from_socket_addr(&stream.peer_addr()?.to_string(), "tcp").into(),
+        ),
     };
 
     let (r, w) = stream.into_split();
@@ -277,6 +283,34 @@ mod tests {
         _tunnel_pingpong(listener, connector).await;
     }
 
+    #[tokio::test]
+    async fn connector_keeps_source_addr_and_reports_resolved_addr() {
+        let mut listener = TcpTunnelListener::new("tcp://127.0.0.1:0".parse().unwrap());
+        listener.listen().await.unwrap();
+
+        let port = listener.local_url().port().unwrap();
+        let source_url: url::Url = format!("tcp://localhost:{port}").parse().unwrap();
+        let mut connector = TcpTunnelConnector::new(source_url.clone());
+        connector.set_ip_version(IpVersion::V4);
+
+        let accept_task = tokio::spawn(async move { listener.accept().await.unwrap() });
+        let tunnel = connector.connect().await.unwrap();
+        let accepted_tunnel = accept_task.await.unwrap();
+
+        let info = tunnel.info().unwrap();
+        assert_eq!(info.remote_addr.unwrap().url, source_url.to_string());
+
+        let resolved_remote_addr: url::Url = info.resolved_remote_addr.unwrap().into();
+        assert_eq!(resolved_remote_addr.host_str(), Some("127.0.0.1"));
+        assert_eq!(resolved_remote_addr.port(), Some(port));
+
+        let accepted_info = accepted_tunnel.info().unwrap();
+        assert_eq!(
+            accepted_info.remote_addr,
+            accepted_info.resolved_remote_addr,
+        );
+    }
+
     #[tokio::test]
     async fn test_alloc_port() {
         // v4

easytier/src/tunnel/udp.rs

@@ -428,6 +428,9 @@ impl UdpTunnelListenerData {
                 remote_addr: Some(
                     build_url_from_socket_addr(&remote_addr.to_string(), "udp").into(),
                 ),
+                resolved_remote_addr: Some(
+                    build_url_from_socket_addr(&remote_addr.to_string(), "udp").into(),
+                ),
             }),
         ));
 
@@ -772,6 +775,9 @@ impl UdpTunnelConnector {
                     build_url_from_socket_addr(&socket.local_addr()?.to_string(), "udp").into(),
                 ),
                 remote_addr: Some(self.addr.clone().into()),
+                resolved_remote_addr: Some(
+                    build_url_from_socket_addr(&dst_addr.to_string(), "udp").into(),
+                ),
             }),
         )))
     }

easytier/src/tunnel/unix.rs

@@ -43,7 +43,8 @@ impl UnixSocketTunnelListener {
         let info = TunnelInfo {
             tunnel_type: "unix".to_owned(),
             local_addr: Some(self.local_url().into()),
-            remote_addr: remote_addr.map(Into::into),
+            remote_addr: remote_addr.clone().map(Into::into),
+            resolved_remote_addr: remote_addr.map(Into::into),
         };
 
         let (r, w) = stream.into_split();
@@ -122,6 +123,7 @@ impl super::TunnelConnector for UnixSocketTunnelConnector {
             tunnel_type: "unix".to_owned(),
             local_addr: local_addr.map(Into::into),
             remote_addr: Some(self.addr.clone().into()),
+            resolved_remote_addr: Some(self.addr.clone().into()),
         };
 
         let (r, w) = stream.into_split();

easytier/src/tunnel/websocket.rs

@@ -143,11 +143,13 @@ impl WsTunnelListener {
         }
 
         let (write, read) = stream.split();
+        let remote_addr: crate::proto::common::Url = remote_addr.into();
 
         let info = TunnelInfo {
             tunnel_type: self.addr.scheme().to_owned(),
             local_addr: Some(self.local_url().into()),
-            remote_addr: Some(remote_addr.into()),
+            remote_addr: Some(remote_addr.clone()),
+            resolved_remote_addr: Some(remote_addr),
         };
 
         Ok(Box::new(TunnelWrapper::new(
@@ -235,6 +237,9 @@ impl WsTunnelConnector {
                 .into(),
             ),
             remote_addr: Some(addr.clone().into()),
+            resolved_remote_addr: Some(
+                super::build_url_from_socket_addr(&socket_addr.to_string(), addr.scheme()).into(),
+            ),
         };
 
         let c = ClientBuilder::from_uri(http::Uri::try_from(addr.to_string()).unwrap());

easytier/src/tunnel/wireguard.rs

@@ -538,6 +538,9 @@ impl WgTunnelListener {
                         remote_addr: Some(
                             build_url_from_socket_addr(&addr.to_string(), "wg").into(),
                         ),
+                        resolved_remote_addr: Some(
+                            build_url_from_socket_addr(&addr.to_string(), "wg").into(),
+                        ),
                     }),
                 ));
                 if let Err(e) = conn_sender.send(tunnel) {
@@ -685,6 +688,9 @@ impl WgTunnelConnector {
                 tunnel_type: "wg".to_owned(),
                 local_addr: Some(super::build_url_from_socket_addr(&local_addr, "wg").into()),
                 remote_addr: Some(addr_url.into()),
+                resolved_remote_addr: Some(
+                    super::build_url_from_socket_addr(&addr.to_string(), "wg").into(),
+                ),
             }),
             Some(Box::new(wg_peer)),
         ));