Hello, I have configured my two routers with AUX back to back: ip address 192.168.10.1 255.255.255.0 encapsulation ppp set PPP as encapsulation async dynamic routing async mode dedicatedu ! line aux 0 modem InOut transport input all rxspeed 38400 txspeed 38400 flowcontrol hardware the opposite router is the same except ip address in the same segment. But I only can configure with static routes. Does any body know how to enable dynamic routing (eigrp, rip, etc) in this back to back..? regards Grad _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=1095&t=1095 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]