Good afternoon all, just wishing this forum would really dump the topic about the pdf's/books. There are tons of other places to go to find these materials. I hope this place doesn't get saturated with "me toos". Anyways. I just recently bought a cisco 4000 router with the np-2t (2 serial ints) on it and I was planning to use it to do frame relay with my 25xx series in my home lab. I'm just not sure what cable it is that I need. Someone else had mentioned a 4000 dce to 25xx dte but could any of your smart folk give me some better insight as to what I need to do this? Thanks soo much for your time. Tim _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]