I'm not sure what you mean by "implementing migrating". The cammand that you mentioned is a easy efficient access-list alternative. Essentially it tells the router to drop all packets destined for the specified network. It's easier to setup than an access-list, and more efficent in terms of processor time.
Putting that on every router would essentially kill that address space on the network, but you could also do that by changing the IP addresses on the interfaces. Perhaps you could explain a little further what it is you want to accomplish. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43007&t=43001 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

