GGSN_Loopback test

Loopback test on the UGW is very  useful for Operations Engineers. this help you to confirm your configuration for and APN is correct.

this is archeived by :

1. Create and interface loopback

2.Bind interface under the APN

3.Define loopback IP address.

4.test Configuration by pinging the target IP using the apn VPN instance and using the loopback IP as the source IP.

6. Success Ping means good config