you enable it on the traget with router_a(config)#ip tcp async-mobility server
then activate it from another router: router_b#tunnel router_a it acts just like a telnet session, only slower, and over port 57 what is this for? i am guessing that this is legacy or simply not used much due to the lack of helpfull documentation related to it on cco.. the link is: http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/dialts_c/dtsprt4/dcdasppp.htm __________________________________________________ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38481&t=38481 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]