diff --git a/ttcn3-gbproxy-test/GBProxy_Tests.cfg b/ttcn3-gbproxy-test/GBProxy_Tests.cfg
index e9de7328..e1d65732 100644
--- a/ttcn3-gbproxy-test/GBProxy_Tests.cfg
+++ b/ttcn3-gbproxy-test/GBProxy_Tests.cfg
@@ -56,33 +56,39 @@ GBProxy_Tests.mp_nsconfig_sgsn := {
 }
 GBProxy_Tests.mp_nsconfig_pcu := {
 	{
+		handle_sns := true,
 		nsvc := {
 			{
 				provider := {
 					ip := {
 						local_ip := "172.18.24.103",
+						remote_udp_port := 24000,
 						remote_ip := "172.18.24.10"
 					}
 				}
 			}
 		}
 	}, {
+		handle_sns := true,
 		nsvc := {
 			{
 				provider := {
 					ip := {
 						local_ip := "172.18.24.103",
+						remote_udp_port := 24000,
 						remote_ip := "172.18.24.10"
 					}
 				}
 			}
 		}
 	}, {
+		handle_sns := true,
 		nsvc := {
 			{
 				provider := {
 					ip := {
 						local_ip := "172.18.24.103",
+						remote_udp_port := 24000,
 						remote_ip := "172.18.24.10"
 					}
 				}
diff --git a/ttcn3-gbproxy-test/osmo-gbproxy.cfg b/ttcn3-gbproxy-test/osmo-gbproxy.cfg
index f6d358ee..2eb98246 100644
--- a/ttcn3-gbproxy-test/osmo-gbproxy.cfg
+++ b/ttcn3-gbproxy-test/osmo-gbproxy.cfg
@@ -31,15 +31,18 @@ sgsn nsei 102
  name second
  nri add 4
 ns
- bind udp local
+ bind udp sgsn-side
   listen 172.18.24.10 23000
-  accept-ipaccess
  nse 101
-  ip-sns-bind local
+  ip-sns-bind sgsn-side
   ip-sns-remote 172.18.24.103 7777
  nse 102
-  ip-sns-bind local
+  ip-sns-bind sgsn-side
   ip-sns-remote 172.18.24.103 8888
+ bind udp bss-side
+  listen 172.18.24.10 24000
+  accept-dynamic-ip-sns
+ ip-sns-default bind bss-side
  timer tns-block 3
  timer tns-block-retries 3
  timer tns-reset 3