diff --git a/package.json b/package.json
index 10659af..dfcdbf4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lms",
-  "version": "1.1.27",
+  "version": "1.1.28",
   "description": "Autonomy Studio LMS Electron app",
   "main": "./out/main/index.js",
   "author": {
diff --git a/src/main/index.ts b/src/main/index.ts
index b8ada58..cdcf4ef 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -260,6 +260,7 @@ type RemoteWorkspaceTarget = {
 
 type RosNetworkConfig = {
   enabled?: boolean | null
+  allowExternal?: boolean
   peer?: RemoteWorkspaceTarget | null
 }
 
@@ -3791,7 +3792,7 @@ async function startVisualizationBridge(
   const requestedRosDomainId = String(rosDomainId ?? process.env.ROS_DOMAIN_ID ?? '0').trim() || '0'
   const requestedRosNetworkKey = rosNetworkEnabled(rosNetwork)
     ? `peer:${rosNetwork?.peer?.host?.trim() ?? ''}`
-    : 'local'
+    : rosNetwork?.allowExternal === true ? 'lan' : 'local'
   const otherContainerNames = (['autoware', 'nav2', 'slam'] as VisualizationStack[])
     .filter((item) => item !== stack)
     .map(visualizationBridgeContainerName)
@@ -3869,7 +3870,7 @@ async function startVisualizationBridge(
       '-e',
       `ROS_DOMAIN_ID=${requestedRosDomainId}`,
       '-e',
-      `ROS_LOCALHOST_ONLY=${rosNetworkEnabled(rosNetwork) ? '0' : '1'}`,
+      `ROS_LOCALHOST_ONLY=${rosNetworkEnabled(rosNetwork) || rosNetwork?.allowExternal === true ? '0' : '1'}`,
       '-e',
       `AUTONOMY_STUDIO_ROS_NETWORK=${requestedRosNetworkKey}`,
       '-e',
@@ -5062,7 +5063,7 @@ async function startWorkspaceModule(
       ],
       undefined,
       {
-        ROS_LOCALHOST_ONLY: rosNetworkEnabled(rosNetwork) ? '0' : '1',
+        ROS_LOCALHOST_ONLY: rosNetworkEnabled(rosNetwork) || rosNetwork?.allowExternal === true ? '0' : '1',
         ...(fastDdsConfigPath ? { FASTDDS_CONFIG_PATH: fastDdsConfigPath } : {}),
       },
       30000
diff --git a/src/preload/index.ts b/src/preload/index.ts
index 8cf7289..b3ee838 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -54,6 +54,7 @@ type ModuleInstallOptions = {
 
 type RosNetworkConfig = {
   enabled?: boolean | null
+  allowExternal?: boolean
   peer?: RemoteWorkspaceTarget | null
 }
 
diff --git a/src/renderer/src/App.tsx b/src/renderer/src/App.tsx
index 5738d9e..9ed48e6 100644
--- a/src/renderer/src/App.tsx
+++ b/src/renderer/src/App.tsx
@@ -1000,9 +1000,10 @@ function LocalPcWorkspaceMockup({
     workspaceRoot: remoteRuntimeRoot,
   } : null
   const rosNetworkConfig = useMemo<RosNetworkConfig | null>(() => {
-    if (!rosWorkspaceLinked) return null
+    const localNetwork = !remoteWorkspace ? { enabled: false, allowExternal: sourceSettings.allowExternalRos === true } : null
+    if (!rosWorkspaceLinked) return localNetwork
     if (remoteWorkspace) return { enabled: true }
-    if (!linkedPlatform) return null
+    if (!linkedPlatform) return localNetwork
 
     const linkedDefaults = normalizeStudioSourceSettings({
       ...(linkedPlatform.sourceSettings ?? {}),
@@ -1013,7 +1014,7 @@ function LocalPcWorkspaceMockup({
     const peerHost = parseHostFromUrl(readNestedString(linkedProfile?.config, ['agent', 'url']))
       ?? parseHostFromUrl(readNestedString(linkedProfile?.config, ['bridge', 'env', 'BRIDGE_HTTP_URL']))
       ?? parseHostFromUrl(linkedDefaults.agentUrl ?? null)
-    if (!peerHost) return null
+    if (!peerHost) return localNetwork
 
     const peerPort = Number(linkedDefaults.sshPort ?? 22)
     return {
@@ -1024,7 +1025,7 @@ function LocalPcWorkspaceMockup({
         port: Number.isFinite(peerPort) && peerPort > 0 ? peerPort : 22,
       },
     }
-  }, [linkedPlatform, remoteWorkspace, rosWorkspaceLinked, weekNumber])
+  }, [linkedPlatform, remoteWorkspace, rosWorkspaceLinked, weekNumber, sourceSettings.allowExternalRos])
   const visualizationBridgeLocation = (
     remoteWorkspace ? localWorkspaceSettings.visualizationBridgeLocation : sourceSettings.visualizationBridgeLocation
   ) === 'platform' && rosWorkspaceLinked
@@ -2449,6 +2450,7 @@ function LocalPcWorkspaceMockup({
       giteaBaseUrl: sourceSettings.giteaBaseUrl,
       giteaOwner: sourceSettings.giteaOwner,
       gpuEnabled: sourceSettingsDraft.gpuEnabled,
+      allowExternalRos: !remoteWorkspace && sourceSettingsDraft.allowExternalRos === true,
       editorWordWrap: sourceSettingsDraft.editorWordWrap,
       editorFontSize: sourceSettingsDraft.editorFontSize,
       editorTabSize: sourceSettingsDraft.editorTabSize,
@@ -2475,6 +2477,7 @@ function LocalPcWorkspaceMockup({
       giteaBaseUrl: sourceSettings.giteaBaseUrl,
       giteaOwner: sourceSettings.giteaOwner,
       gpuEnabled: settings.gpuEnabled,
+      allowExternalRos: !remoteWorkspace && settings.allowExternalRos === true,
       editorWordWrap: settings.editorWordWrap,
       editorFontSize: settings.editorFontSize,
       editorTabSize: settings.editorTabSize,
diff --git a/src/renderer/src/env.d.ts b/src/renderer/src/env.d.ts
index 0f2e1f9..fc38f01 100644
--- a/src/renderer/src/env.d.ts
+++ b/src/renderer/src/env.d.ts
@@ -34,6 +34,7 @@ type ModuleInstallOptions = {
 
 type RosNetworkConfig = {
   enabled?: boolean | null
+  allowExternal?: boolean
   peer?: RemoteWorkspaceTarget | null
 }
 
diff --git a/src/renderer/src/features/platforms/types.ts b/src/renderer/src/features/platforms/types.ts
index 0bde18b..ee81d79 100644
--- a/src/renderer/src/features/platforms/types.ts
+++ b/src/renderer/src/features/platforms/types.ts
@@ -8,6 +8,7 @@ export type StudioSourceSettings = {
   editorTabSize: number
   editorMinimap: boolean
   rosDomainId: string
+  allowExternalRos?: boolean
   rosLinkedPlatformId?: string | null
   visualizationBridgeLocation?: 'local' | 'platform'
   agentUrl?: string | null
diff --git a/src/renderer/src/features/workspace/WorkspaceSettingsView.tsx b/src/renderer/src/features/workspace/WorkspaceSettingsView.tsx
index 180d11c..8181a32 100644
--- a/src/renderer/src/features/workspace/WorkspaceSettingsView.tsx
+++ b/src/renderer/src/features/workspace/WorkspaceSettingsView.tsx
@@ -97,6 +97,13 @@ function WorkspaceSettingsView({
                       dark={dark}
                     />
                   </div>
+                  <StudioSettingsSwitch
+                    label="외부 ROS 통신"
+                    description="같은 네트워크의 기체와 통신을 허용합니다. 사용자별 ROS Domain ID를 구분하고, 변경 후 모듈과 시각화를 재실행하세요. 플랫폼 연동 통신은 별도 설정을 따릅니다."
+                    checked={sourceSettingsDraft.allowExternalRos === true}
+                    onChange={(checked) => onUpdateSourceSetting('allowExternalRos', checked)}
+                    dark={dark}
+                  />
                   <StudioSettingsSwitch
                     label="GPU 가속"
                     description="ON이면 Docker 실행 시 NVIDIA GPU를 사용합니다."
diff --git a/src/renderer/src/features/workspace/sourceSettings.ts b/src/renderer/src/features/workspace/sourceSettings.ts
index 18a6d7c..aad6b71 100644
--- a/src/renderer/src/features/workspace/sourceSettings.ts
+++ b/src/renderer/src/features/workspace/sourceSettings.ts
@@ -11,6 +11,7 @@ export const defaultStudioSourceSettings: StudioSourceSettings = {
   editorTabSize: 4,
   editorMinimap: true,
   rosDomainId: '77',
+  allowExternalRos: false,
   rosLinkedPlatformId: null,
   visualizationBridgeLocation: 'local',
 }
@@ -53,6 +54,7 @@ export function normalizeStudioSourceSettings(settings?: Partial<StudioSourceSet
     giteaBaseUrl: (settings?.giteaBaseUrl || defaultStudioSourceSettings.giteaBaseUrl).replace(/\/+$/, ''),
     giteaOwner: giteaOwner === 'students' ? defaultStudioSourceSettings.giteaOwner : giteaOwner,
     gpuEnabled: Boolean(settings?.gpuEnabled),
+    allowExternalRos: settings?.allowExternalRos === true,
     editorWordWrap: settings?.editorWordWrap ?? defaultStudioSourceSettings.editorWordWrap,
     editorFontSize: Number.isFinite(requestedEditorFontSize)
       ? Math.min(16, Math.max(12, Math.round(requestedEditorFontSize)))
diff --git a/src/renderer/src/features/workspace/types.ts b/src/renderer/src/features/workspace/types.ts
index bd9592f..d193b76 100644
--- a/src/renderer/src/features/workspace/types.ts
+++ b/src/renderer/src/features/workspace/types.ts
@@ -47,5 +47,6 @@ export type RuntimeImageArtifact = {
 
 export type RosNetworkConfig = {
   enabled?: boolean
+  allowExternal?: boolean
   peer?: RemoteWorkspaceTarget | null
 }