diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/components/LocalSocketNatInfo.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/components/LocalSocketNatInfo.kt
new file mode 100644
index 00000000..be9650ed
--- /dev/null
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/components/LocalSocketNatInfo.kt
@@ -0,0 +1,21 @@
+package com.utun.chat.ui.components
+
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import com.utun.chat.R
+import com.utun.chat.data.LocalSocketState
+
+/** Результат детектора для рабочего сокета; порт TCP остаётся нулевым. */
+@Composable
+fun LocalSocketNatInfo(socket: LocalSocketState) {
+    val source = if (socket.natSource == 2) " · STUN" else ""
+    Text(stringResource(socket.natLabelRes) + source,
+        style = MaterialTheme.typography.bodySmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+    if (socket.externalIp.isNotEmpty()) {
+        val ip = if (socket.externalIp.contains(':')) "[${socket.externalIp}]" else socket.externalIp
+        Text(stringResource(R.string.socket_external_address, "$ip:${socket.externalPort}"),
+            style = MaterialTheme.typography.bodySmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+    }
+}
diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/MemberListScreen.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/MemberListScreen.kt
index ab8d6e4b..a0aa2f9e 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/MemberListScreen.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/MemberListScreen.kt
@@ -47,6 +47,7 @@ import com.utun.chat.data.MemberDetail
 import com.utun.chat.data.MemberLinks
 import com.utun.chat.data.LinkStatus
 import com.utun.chat.data.LocalSocketState
+import com.utun.chat.ui.components.LocalSocketNatInfo
 import com.utun.chat.ui.components.PortableRadioIcon
 import com.utun.chat.ui.components.RadioSpeakerIcon
 import com.utun.chat.viewmodel.ChatViewModel
@@ -427,6 +428,7 @@ private fun MemberDetailCard(
                                 color = MaterialTheme.colorScheme.onSurface
                             )
                         }
+                        LocalSocketNatInfo(sk)
                     }
                 }
             } else {
diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/SettingsScreen.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/SettingsScreen.kt
index 675a7556..d06abeac 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/SettingsScreen.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/SettingsScreen.kt
@@ -41,6 +41,7 @@ import com.utun.chat.data.MicrophonePermission
 import com.utun.chat.data.LogManager
 import com.utun.chat.data.ServerEntry
 import com.utun.chat.data.LocalSocketState
+import com.utun.chat.ui.components.LocalSocketNatInfo
 import com.utun.chat.data.VoiceSettings
 import com.utun.chat.headless.HeadlessService
 import com.utun.chat.ui.components.BatteryOptimizationSetting
@@ -380,6 +381,7 @@ private fun DeveloperSettingsTab(vm: ChatViewModel, onDirty: (Boolean) -> Unit,
                         }
                         Text(s.ifName, style = MaterialTheme.typography.bodySmall,
                             color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.fillMaxWidth())
+                        LocalSocketNatInfo(s)
                     }
                 }
             }