just to let you know that you can set a loopback on a Cisco router from the router ? You must be in the priv mode not user mode to put the router in loopback. Router# Router#conf ter ( hit enter ) Router(config)#int s0 ( hit enter ) Router(config-if)#LOOPBACK (hit enter ) Router(config-if)#end (hit enter ) Router#sho int s0 ( you will now see the serial interface in loopback) To remove the loopback from the serial interface just reload the router or do this: Router# Router#conf ter ( hit enter ) Router(config)#int s0 ( hit enter ) Router(config-if)#NO LOOPBACK (hit enter ) Router(config-if)#end (hit enter ) Router#sho int s0 ( you will now see the serial interface out of the loopback) Brian Email Address [EMAIL PROTECTED] ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]