diff --git a/conf/gns3_server.conf b/conf/gns3_server.conf
index ffab4ec8..d3bf1dec 100644
--- a/conf/gns3_server.conf
+++ b/conf/gns3_server.conf
@@ -26,9 +26,9 @@ console_start_port_range = 5000
 ; Last console port of the range allocated to devices
 console_end_port_range = 10000
 ; First port of the range allocated for inter-device communication. Two ports are allocated per link.
-udp_start_port_range = 10000
+udp_start_port_range = 20000
 ; Last port of the range allocated for inter-device communication. Two ports are allocated per link
-udp_end_port_range = 20000
+udp_end_port_range = 30000
 ; uBridge executable location, default: search in PATH
 ;ubridge_path = ubridge