diff --git a/AST.cs b/AST.cs
index 97f6dcb..042f7a8 100644
--- a/AST.cs
+++ b/AST.cs
@@ -1054,10 +1054,15 @@ namespace langtest
                 Expression listenIp = expressions[0];
                 Expression listenPort = expressions[1];
                 VariableGetValueNode? stream_name = expressions[2] as VariableGetValueNode;
-                Expression exp = expressions[3];
+                VariableGetValueNode? ip_name = expressions[3] as VariableGetValueNode;
+
+                Expression exp = expressions[4];
+
                 if(stream_name == null) throw new Exception("You must use identifier at positional arg #3 (starting from 1)");
+                if(ip_name == null) throw new Exception("You must use identifier at positional arg #4 (starting from 1)");
                 string name = stream_name.Name;
-                //tcpserver("0.0.0.0",4202,strm,{})
+                string ipname = ip_name.Name;
+                //tcpserver("0.0.0.0",4202,strm,ip,{})
                 TcpListener listener = new TcpListener(new IPEndPoint(IPAddress.Parse(state.BoxToString(listenIp.Evaluate(state))),(int)listenPort.Evaluate(state)));
                 listener.Start();
                 while(true)
@@ -1067,6 +1072,10 @@ namespace langtest
                    var s=state.NewScope();
                    long str =s.CreateStream(stream);
                    s.SetVariable(name,str);
+                   string? ip=clt.Client?.RemoteEndPoint?.ToString();
+                   if(string.IsNullOrWhiteSpace(ip)) ip="";
+
+                   s.SetVariable(ipname,s.CreateBox(ip));
                    exp.Execute(s);
                    s.CloseStream(str);
                 }