Depends...No its not necessary, but what if one misconfigured router starts advertising lots of bogus networks. It could flood routers on the other side of the redistribution. What if you are redistributing 10.x.x.x network into a 172.16.x.x network and an a router on the 172.16.X.X gets misconfigured and starts advertising 10.x.x.x networks and they get redistributed into the correct 10.x.x.x network.
So no it is not necessary in the lab or the real world, but it is good practice. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of John Neiberger Sent: Monday, December 10, 2001 12:19 PM To: [EMAIL PROTECTED] Subject: RE: Redistribution and Filtering [7:28699] But is it ever necessary if you're only using a single router to do the redistribution? >>> "Bill Carter" 12/10/01 10:55:23 AM >>> Yes it is overkill. Yes it is good practice to use either route-maps or distribute lists. Control is better. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of William Lijewski Sent: Monday, December 10, 2001 10:57 AM To: [EMAIL PROTECTED] Subject: Redistribution and Filtering [7:28699] I have a basic question, kind of... When you redistribute between routing protocols, should you ALWAYS use a route-map? If there are no loops is it still recommended/required? I have been doing it but I want to know if its overkill. Thanks, Bill Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=28722&t=28699 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

