Security guru's, I have a router to the internet where the ISP is using the 10.x.x.x network on the serial interface(interface connected to them)... The customer has a class C registered address block.. Can I put a registered address on the ethernet or on a loopback interface and use that registered IP address to create a VPN connection to a remote site? Or does it have to for some reason be on the external interface? Thanks for your help. Cory R Stull CCNP, CCDP, MCSE, BNCS Communications Concepts Unl. 262-814-7214 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=1649&t=1649 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]