Hi all 3600A--csu-----------------------------private line-----------------------------------------csu--3600B In this environment, I am at 3600A router. I was wondering if I could loop up remote csu(3600B side) by configuring 3600A router instead of having telco do that for me. I remember that I have done this before between 7200 router and 3600 router. I was also wondering if I could do with even lower model of routers, such as 2600s and 2500s. Would it be possible? Thanks JP Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14384&t=14384 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]