Do you have another router to connect to the 3660? This would give you a better idea of how it really works. It looks like right now you are trying to do frame relay back to back, which also works, but it depends on how you have your settings. If you want to do frame relay encapsulation back to back, take a look at this link:
http://www.cisco.com/warp/public/125/frbacktoback_hybrid.html Guy -----Original Message----- From: PING To: [EMAIL PROTECTED] Sent: 4/11/2002 9:49 PM Subject: Frame-Relay Problem [7:41250] If I have this simple net: 3660(FR Switch)-------------------3640 I am using NM-4T on both routers. Default (HDLC) encapsulation causes both router serial interfaces to come up. I am trying inverse ARP from Caslow book but as soon as I enable FR (or even PPP) encap, line goes down. 3660 is the DCE and supplying clock. I am not sure if someone has tried NM-4T with FR? /N Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=41255&t=41250 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]