diff --git a/examples/ggsn.conf b/examples/ggsn.conf
index ad2dcd6..c2d3678 100644
--- a/examples/ggsn.conf
+++ b/examples/ggsn.conf
@@ -44,6 +44,16 @@
 # Used to allocate dynamic IP addresses and set up routing.
 #mask 255.255.255.0
 
+# TAG: ipup
+# Script executed after network interface has been brought up.
+# Executed with the following parameters: <devicename> <ip address>
+#ipup /etc/ggsn/ip-up
+
+# TAG: ipdown
+# Script executed after network interface has been taken down.
+# Executed with the following parameters: <devicename> <ip address>
+#ipdown /etc/ggsn/ip-down
+
 
 # TAG: timelimit
 # Exit after timelimit seconds.