diff --git a/Cargo.lock b/Cargo.lock
index 3dc6e306..91b2dfa9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -387,7 +387,7 @@ dependencies = [
 [[package]]
 name = "boringtun"
 version = "0.6.0"
-source = "git+https://github.com/KKRainbow/boringtun.git#449204c3eca736dc23b075d81426527a357e2f2a"
+source = "git+https://github.com/EasyTier/boringtun.git#449204c3eca736dc23b075d81426527a357e2f2a"
 dependencies = [
  "aead",
  "atomic-shim",
@@ -1309,6 +1309,7 @@ dependencies = [
  "quinn",
  "rand 0.8.5",
  "rcgen",
+ "regex",
  "reqwest",
  "ring 0.17.8",
  "rstest",
@@ -1348,6 +1349,7 @@ dependencies = [
  "chrono",
  "dashmap",
  "easytier",
+ "gethostname",
  "once_cell",
  "privilege",
  "serde",
diff --git a/easytier-gui/locales/cn.yml b/easytier-gui/locales/cn.yml
index 4e6be22b..63cb2bb2 100644
--- a/easytier-gui/locales/cn.yml
+++ b/easytier-gui/locales/cn.yml
@@ -32,6 +32,7 @@ settings: 设置
 exchange_language: Switch to English
 exit: 退出
 chips_placeholder: 例如： {0}, 按回车添加
+hostname_placeholder: '留空默认为主机名: {0}'
 off_text: 点击关闭
 on_text: 点击开启
 show_config: 显示配置
diff --git a/easytier-gui/locales/en.yml b/easytier-gui/locales/en.yml
index 6c80c27e..b19c362d 100644
--- a/easytier-gui/locales/en.yml
+++ b/easytier-gui/locales/en.yml
@@ -33,6 +33,7 @@ exchange_language: 切换中文
 exit: Exit
 
 chips_placeholder: 'e.g: {0}, press Enter to add'
+hostname_placeholder: 'Leave blank and default to host name: {0}'
 off_text: Press to disable
 on_text: Press to enable
 show_config: Show Config
diff --git a/easytier-gui/src-tauri/Cargo.toml b/easytier-gui/src-tauri/Cargo.toml
index c98b2315..bf702f88 100644
--- a/easytier-gui/src-tauri/Cargo.toml
+++ b/easytier-gui/src-tauri/Cargo.toml
@@ -11,7 +11,11 @@ edition = "2021"
 tauri-build = { version = "1", features = [] }
 
 [dependencies]
-tauri = { version = "1", features = [ "process-exit", "system-tray", "shell-open"] }
+tauri = { version = "1", features = [
+  "process-exit",
+  "system-tray",
+  "shell-open",
+] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 
@@ -24,7 +28,7 @@ once_cell = "1.18.0"
 dashmap = "5.5.3"
 
 privilege = "0.3"
-
+gethostname = "0.4.3"
 [features]
 # This feature is used for production builds or when a dev server is not specified, DO NOT REMOVE!!
 custom-protocol = ["tauri/custom-protocol"]
diff --git a/easytier-gui/src-tauri/src/main.rs b/easytier-gui/src-tauri/src/main.rs
index ad4a4723..6ce7ce36 100644
--- a/easytier-gui/src-tauri/src/main.rs
+++ b/easytier-gui/src-tauri/src/main.rs
@@ -42,6 +42,7 @@ struct NetworkConfig {
     instance_id: String,
 
     virtual_ipv4: String,
+    hostname: Option<String>,
     network_name: String,
     network_secret: String,
     networking_method: NetworkingMethod,
@@ -70,6 +71,7 @@ impl NetworkConfig {
                 .parse()
                 .with_context(|| format!("failed to parse instance id: {}", self.instance_id))?,
         );
+        cfg.set_hostname(self.hostname.clone());
         cfg.set_inst_name(self.network_name.clone());
         cfg.set_network_identity(NetworkIdentity::new(
             self.network_name.clone(),
@@ -281,6 +283,11 @@ fn collect_network_infos() -> Result<String, String> {
     Ok(serde_json::to_string(&ret).map_err(|e| e.to_string())?)
 }
 
+#[tauri::command]
+fn get_os_hostname() -> Result<String, String> {
+    Ok(gethostname::gethostname().to_string_lossy().to_string())
+}
+
 fn toggle_window_visibility(window: &Window) {
     if window.is_visible().unwrap() {
         window.hide().unwrap();
@@ -318,7 +325,8 @@ fn main() {
             parse_network_config,
             run_network_instance,
             retain_network_instance,
-            collect_network_infos
+            collect_network_infos,
+            get_os_hostname
         ])
         .system_tray(SystemTray::new().with_menu(tray_menu))
         .on_system_tray_event(|app, event| match event {
diff --git a/easytier-gui/src/auto-imports.d.ts b/easytier-gui/src/auto-imports.d.ts
index 9fbc786e..d337cfbb 100644
--- a/easytier-gui/src/auto-imports.d.ts
+++ b/easytier-gui/src/auto-imports.d.ts
@@ -20,6 +20,7 @@ declare global {
   const getActivePinia: typeof import('pinia')['getActivePinia']
   const getCurrentInstance: typeof import('vue')['getCurrentInstance']
   const getCurrentScope: typeof import('vue')['getCurrentScope']
+  const getOsHostname: typeof import('./composables/network')['getOsHostname']
   const h: typeof import('vue')['h']
   const inject: typeof import('vue')['inject']
   const isProxy: typeof import('vue')['isProxy']
@@ -108,6 +109,7 @@ declare module 'vue' {
     readonly getActivePinia: UnwrapRef<typeof import('pinia')['getActivePinia']>
     readonly getCurrentInstance: UnwrapRef<typeof import('vue')['getCurrentInstance']>
     readonly getCurrentScope: UnwrapRef<typeof import('vue')['getCurrentScope']>
+    readonly getOsHostname: UnwrapRef<typeof import('./composables/network')['getOsHostname']>
     readonly h: UnwrapRef<typeof import('vue')['h']>
     readonly inject: UnwrapRef<typeof import('vue')['inject']>
     readonly isProxy: UnwrapRef<typeof import('vue')['isProxy']>
@@ -189,6 +191,7 @@ declare module '@vue/runtime-core' {
     readonly getActivePinia: UnwrapRef<typeof import('pinia')['getActivePinia']>
     readonly getCurrentInstance: UnwrapRef<typeof import('vue')['getCurrentInstance']>
     readonly getCurrentScope: UnwrapRef<typeof import('vue')['getCurrentScope']>
+    readonly getOsHostname: UnwrapRef<typeof import('./composables/network')['getOsHostname']>
     readonly h: UnwrapRef<typeof import('vue')['h']>
     readonly inject: UnwrapRef<typeof import('vue')['inject']>
     readonly isProxy: UnwrapRef<typeof import('vue')['isProxy']>
diff --git a/easytier-gui/src/components/Config.vue b/easytier-gui/src/components/Config.vue
index 947a1a88..aac1b777 100644
--- a/easytier-gui/src/components/Config.vue
+++ b/easytier-gui/src/components/Config.vue
@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import InputGroup from 'primevue/inputgroup'
 import InputGroupAddon from 'primevue/inputgroupaddon'
+import { getOsHostname } from '~/composables/network'
 import { i18n } from '~/modules/i18n'
 import { NetworkingMethod } from '~/types/network'
 
@@ -32,6 +33,24 @@ const curNetwork = computed(() => {
 const presetPublicServers = [
   'tcp://easytier.public.kkrainbow.top:11010',
 ]
+
+function validateHostname() {
+  if (curNetwork.value.hostname) {
+    // eslint no-useless-escape
+    let name = curNetwork.value.hostname!.replaceAll(/[^\u4E00-\u9FA5a-zA-Z0-9\-]*/g, '')
+    if (name.length > 32)
+      name = name.substring(0, 32)
+
+    if (curNetwork.value.hostname !== name)
+      curNetwork.value.hostname = name
+  }
+}
+
+const osHostname = ref<string>('')
+
+onMounted(async () => {
+  osHostname.value = await getOsHostname()
+})
 </script>
 
 <template>
@@ -151,6 +170,15 @@ const presetPublicServers = [
                 />
               </div>
             </div>
+            <div class="flex flex-row gap-x-9 flex-wrap">
+              <div class="flex flex-column gap-2 basis-5/12 grow">
+                <label for="hostname">{{ $t('hostname') }}</label>
+                <InputText
+                  id="hostname" v-model="curNetwork.hostname" aria-describedby="hostname-help" :format="true"
+                  :placeholder="$t('hostname_placeholder', [osHostname])" @blur="validateHostname"
+                />
+              </div>
+            </div>
           </div>
         </Panel>
 
diff --git a/easytier-gui/src/components/Status.vue b/easytier-gui/src/components/Status.vue
index c1726445..fb80166a 100644
--- a/easytier-gui/src/components/Status.vue
+++ b/easytier-gui/src/components/Status.vue
@@ -348,14 +348,14 @@ function showEventLogs() {
         {{ $t('peer_info') }}
       </template>
       <template #content>
-        <DataTable :value="peerRouteInfos" table-style="min-width: 50rem">
-          <Column field="route.ipv4_addr" :header="$t('virtual_ipv4')" />
-          <Column field="route.hostname" :header="$t('hostname')" />
-          <Column :field="routeCost" :header="$t('route_cost')" />
-          <Column :field="latencyMs" :header="$t('latency')" />
-          <Column :field="txBytes" :header="$t('upload_bytes')" />
-          <Column :field="rxBytes" :header="$t('download_bytes')" />
-          <Column :field="lossRate" :header="$t('loss_rate')" />
+        <DataTable :value="peerRouteInfos" column-resize-mode="fit" table-style="width: 100%">
+          <Column field="route.ipv4_addr" style="width: 100px;" :header="$t('virtual_ipv4')" />
+          <Column field="route.hostname" style="max-width: 250px;" :header="$t('hostname')" />
+          <Column :field="routeCost" style="width: 60px;" :header="$t('route_cost')" />
+          <Column :field="latencyMs" style="width: 80px;" :header="$t('latency')" />
+          <Column :field="txBytes" style="width: 80px;" :header="$t('upload_bytes')" />
+          <Column :field="rxBytes" style="width: 80px;" :header="$t('download_bytes')" />
+          <Column :field="lossRate" style="width: 60px;" :header="$t('loss_rate')" />
         </DataTable>
       </template>
     </Card>
diff --git a/easytier-gui/src/composables/network.ts b/easytier-gui/src/composables/network.ts
index 90455eb0..7314803d 100644
--- a/easytier-gui/src/composables/network.ts
+++ b/easytier-gui/src/composables/network.ts
@@ -20,3 +20,7 @@ export async function collectNetworkInfos() {
   const ret: string = await invoke('collect_network_infos', {})
   return JSON.parse(ret)
 }
+
+export async function getOsHostname(): Promise<string> {
+  return await invoke('get_os_hostname')
+}
\ No newline at end of file
diff --git a/easytier-gui/src/types/network.ts b/easytier-gui/src/types/network.ts
index 4785c976..9b664903 100644
--- a/easytier-gui/src/types/network.ts
+++ b/easytier-gui/src/types/network.ts
@@ -10,6 +10,7 @@ export interface NetworkConfig {
   instance_id: string
 
   virtual_ipv4: string
+  hostname?: string
   network_name: string
   network_secret: string
 
diff --git a/easytier/Cargo.toml b/easytier/Cargo.toml
index 73822665..e78fca7b 100644
--- a/easytier/Cargo.toml
+++ b/easytier/Cargo.toml
@@ -58,6 +58,8 @@ async-trait = "0.1.74"
 dashmap = "5.5.3"
 timedmap = "=1.0.1"
 
+regex = "1"
+
 # for full-path zero-copy
 zerocopy = { version = "0.7.32", features = ["derive", "simd"] }
 bytes = "1.5.0"
diff --git a/easytier/src/common/config.rs b/easytier/src/common/config.rs
index 5564a959..9604e373 100644
--- a/easytier/src/common/config.rs
+++ b/easytier/src/common/config.rs
@@ -14,6 +14,9 @@ pub trait ConfigLoader: Send + Sync {
     fn get_id(&self) -> uuid::Uuid;
     fn set_id(&self, id: uuid::Uuid);
 
+    fn get_hostname(&self) -> String;
+    fn set_hostname(&self, name: Option<String>);
+
     fn get_inst_name(&self) -> String;
     fn set_inst_name(&self, name: String);
 
@@ -152,6 +155,7 @@ pub struct Flags {
 #[derive(Debug, Clone, Deserialize, Serialize, PartialEq)]
 struct Config {
     netns: Option<String>,
+    hostname: Option<String>,
     instance_name: Option<String>,
     instance_id: Option<uuid::Uuid>,
     ipv4: Option<String>,
@@ -190,6 +194,7 @@ impl TomlConfigLoader {
                 config_str, config_str
             )
         })?;
+
         Ok(TomlConfigLoader {
             config: Arc::new(Mutex::new(config)),
         })
@@ -216,6 +221,36 @@ impl ConfigLoader for TomlConfigLoader {
         self.config.lock().unwrap().instance_name = Some(name);
     }
 
+    fn get_hostname(&self) -> String {
+        let hostname = self.config.lock().unwrap().hostname.clone();
+
+        match hostname {
+            Some(hostname) => {
+                if !hostname.is_empty() {
+                    let re = regex::Regex::new(r"[^\u4E00-\u9FA5a-zA-Z0-9\-]*").unwrap();
+                    let mut name = re.replace_all(&hostname, "").to_string();
+
+                    if name.len() > 32 {
+                        name = name.chars().take(32).collect::<String>();
+                    }
+
+                    if hostname != name {
+                        self.set_hostname(Some(name.clone()));
+                    }
+                    name
+                } else {
+                    self.set_hostname(None);
+                    gethostname::gethostname().to_string_lossy().to_string()
+                }
+            }
+            None => gethostname::gethostname().to_string_lossy().to_string(),
+        }
+    }
+
+    fn set_hostname(&self, name: Option<String>) {
+        self.config.lock().unwrap().hostname = name;
+    }
+
     fn get_netns(&self) -> Option<String> {
         self.config.lock().unwrap().netns.clone()
     }
diff --git a/easytier/src/common/global_ctx.rs b/easytier/src/common/global_ctx.rs
index 9a71f10f..d574311e 100644
--- a/easytier/src/common/global_ctx.rs
+++ b/easytier/src/common/global_ctx.rs
@@ -54,7 +54,7 @@ pub struct GlobalCtx {
 
     ip_collector: Arc<IPCollector>,
 
-    hotname: AtomicCell<Option<String>>,
+    hostname: String,
 
     stun_info_collection: Box<dyn StunInfoCollectorTrait>,
 
@@ -80,6 +80,7 @@ impl GlobalCtx {
         let id = config_fs.get_id();
         let network = config_fs.get_network_identity();
         let net_ns = NetNS::new(config_fs.get_netns());
+        let hostname = config_fs.get_hostname();
 
         let (event_bus, _) = tokio::sync::broadcast::channel(100);
 
@@ -96,7 +97,7 @@ impl GlobalCtx {
 
             ip_collector: Arc::new(IPCollector::new(net_ns)),
 
-            hotname: AtomicCell::new(None),
+            hostname,
 
             stun_info_collection: Box::new(StunInfoCollector::new_with_default_servers()),
 
@@ -165,15 +166,8 @@ impl GlobalCtx {
         self.ip_collector.clone()
     }
 
-    pub fn get_hostname(&self) -> Option<String> {
-        if let Some(hostname) = self.hotname.take() {
-            self.hotname.store(Some(hostname.clone()));
-            return Some(hostname);
-        }
-
-        let hostname = gethostname::gethostname().to_string_lossy().to_string();
-        self.hotname.store(Some(hostname.clone()));
-        return Some(hostname);
+    pub fn get_hostname(&self) -> String {
+        return self.hostname.clone();
     }
 
     pub fn get_stun_info_collector(&self) -> impl StunInfoCollectorTrait + '_ {
diff --git a/easytier/src/easytier-core.rs b/easytier/src/easytier-core.rs
index 3bbc25fa..3860664a 100644
--- a/easytier/src/easytier-core.rs
+++ b/easytier/src/easytier-core.rs
@@ -111,6 +111,9 @@ struct Cli {
     #[arg(long, help = "directory to store log files")]
     file_log_dir: Option<String>,
 
+    #[arg(long, help = "host name to identify this device")]
+    hostname: Option<String>,
+
     #[arg(
         short = 'm',
         long,
@@ -177,6 +180,9 @@ impl From<Cli> for TomlConfigLoader {
         let cfg = TomlConfigLoader::default();
 
         cfg.set_inst_name(cli.instance_name.clone());
+
+        cfg.set_hostname(cli.hostname.clone());
+
         cfg.set_network_identity(NetworkIdentity::new(
             cli.network_name.clone(),
             cli.network_secret.clone(),
diff --git a/easytier/src/peers/peer_ospf_route.rs b/easytier/src/peers/peer_ospf_route.rs
index b7b9624c..59bdbf43 100644
--- a/easytier/src/peers/peer_ospf_route.rs
+++ b/easytier/src/peers/peer_ospf_route.rs
@@ -101,7 +101,7 @@ impl RoutePeerInfo {
                 .map(|x| x.to_string())
                 .chain(global_ctx.get_vpn_portal_cidr().map(|x| x.to_string()))
                 .collect(),
-            hostname: global_ctx.get_hostname(),
+            hostname: Some(global_ctx.get_hostname()),
             udp_stun_info: global_ctx
                 .get_stun_info_collector()
                 .get_stun_info()
@@ -138,11 +138,7 @@ impl Into<crate::rpc::Route> for RoutePeerInfo {
             next_hop_peer_id: 0,
             cost: self.cost as i32,
             proxy_cidrs: self.proxy_cidrs.clone(),
-            hostname: if let Some(hostname) = &self.hostname {
-                hostname.clone()
-            } else {
-                "".to_string()
-            },
+            hostname: self.hostname.unwrap_or_default(),
             stun_info: {
                 let mut stun_info = StunInfo::default();
                 if let Ok(udp_nat_type) = NatType::try_from(self.udp_stun_info as i32) {
diff --git a/easytier/src/peers/peer_rip_route.rs b/easytier/src/peers/peer_rip_route.rs
index fda9e5a3..2ce0a05d 100644
--- a/easytier/src/peers/peer_rip_route.rs
+++ b/easytier/src/peers/peer_rip_route.rs
@@ -52,7 +52,7 @@ impl SyncPeerInfo {
                 .map(|x| x.to_string())
                 .chain(global_ctx.get_vpn_portal_cidr().map(|x| x.to_string()))
                 .collect(),
-            hostname: global_ctx.get_hostname(),
+            hostname: Some(global_ctx.get_hostname()),
             udp_stun_info: global_ctx
                 .get_stun_info_collector()
                 .get_stun_info()
@@ -585,11 +585,7 @@ impl Route for BasicRoute {
             route.next_hop_peer_id = route_info.peer_id;
             route.cost = route_info.cost as i32;
             route.proxy_cidrs = route_info.proxy_cidrs.clone();
-            route.hostname = if let Some(hostname) = &route_info.hostname {
-                hostname.clone()
-            } else {
-                "".to_string()
-            };
+            route.hostname = route_info.hostname.clone().unwrap_or_default();
 
             let mut stun_info = StunInfo::default();
             if let Ok(udp_nat_type) = NatType::try_from(route_info.udp_stun_info as i32) {