diff --git a/hieradata/site_template.yaml b/hieradata/site_template.yaml
index 9c7437b..ccdb404 100644
--- a/hieradata/site_template.yaml
+++ b/hieradata/site_template.yaml
@@ -11,6 +11,7 @@ rhizo::arfcn_B:                    "251"
 rhizo::auth_policy:                "accept-all"
 rhizo::vpn_ip_address:             "10.66.0.0"
 rhizo::wan_ip_address:             "192.168.0.0"
+rhizo::ggsn_ip_address:            "127.0.0.1"
 rhizo::lac:                        "1"
 rhizo::mcc:                        "001"
 rhizo::mnc:                        "001"