Hello, The "distribute-list access-list in [interface]" command is not supported in IS-IS and OSPF. Why???
I tried to find an explanation in Cisco's OSPF design guide: ....Filtering information with link-state protocols such as OSPF is a tricky business. Distribute-list out works on the ASBR to filter redistributed routes into other protocols. Distribute-list in works on any router to prevent routes from being put in the routing table, but it does not prevent link-state packets from being propagated, downstream routers would still have the routes. It is better to avoid OSPF filtering as much as possible if filters can be applied on the other protocols to prevent loops.... Why can router not prevent link-state packets from being propagated??? Hope someone can explain this to me. Thanks, Eric Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=62247&t=62247 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
