diff --git a/easytier-web/frontend-lib/src/types/network.ts b/easytier-web/frontend-lib/src/types/network.ts
index c6a0bf9..2bf94e3 100644
--- a/easytier-web/frontend-lib/src/types/network.ts
+++ b/easytier-web/frontend-lib/src/types/network.ts
@@ -93,7 +93,7 @@ export function DEFAULT_NETWORK_CONFIG(): NetworkConfig {
       'udp://0.0.0.0:11010',
       'wg://0.0.0.0:11011',
     ],
-    rpc_port: 0,
+    rpc_port: 15888,
     latency_first: false,
     dev_name: '',
 
diff --git a/easytier/src/easytier-core.rs b/easytier/src/easytier-core.rs
index 7529735..3eda485 100644
--- a/easytier/src/easytier-core.rs
+++ b/easytier/src/easytier-core.rs
@@ -116,7 +116,7 @@ struct Cli {
         short,
         long,
         help = t!("core_clap.rpc_portal").to_string(),
-        default_value = "0"
+        default_value = "15888"
     )]
     rpc_portal: String,