I am aware of what loopback mode is, but I am now getting into further in-depth studies of routing protocols ( specifically EIGRP & OSPF) & it appears (from the screen shots in books) that loopback can be used to introduce a network... maybe one that isn't advertised. Any taker's here :-) Thanks !!! Phil **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _________________________________ 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]

