nanog mailing list archives
Re: Anyone use Cisco Policy Routing?
From: "clarke" <nclarke () mindspring com>
Date: Fri, 14 Sep 2001 16:09:20 -0400
This does not sound like a problem with IOS, but more like a problem with the configuration. Packets matching in your access list will go to the designated next hop. Those failing to match will not be discarded. These packets will take the course of the routing table. Where are you trying to apply the route map? The interface or the routing protocol? For what you're doing, you should apply the Route Map to an incoming interface. Try another matching statement with a lower precedence under your Policy. Ex: route-map Stephen_Policy permit 10 match ip address access_list_A set ip next hop A.A.A.A route-map Stephen_Policy permit 20 match ip address access_list_B set ip next hop B.B.B.B route-map Stephen_Policy permit 30 match ip address default_list set ip next hop C.C.C.C ~ Clarke ~ ----- Original Message ----- From: Stephen J. Wilcox <steve () opaltelecom co uk> To: <nanog () merit edu> Sent: Friday, September 14, 2001 1:28 PM Subject: Anyone use Cisco Policy Routing?
Hi, I'm trying to setup a platform that will send different types of packets over different routes, theres a good example of what I'm doing at http://www.cisco.com/warp/public/cc/pd/ibsw/ibdlsw/prodlit/dlsw5_rg.htm under 'Directing Traffic Flows with Policy Routing' Basically, it doesnt work, I'm on IOS 12.0(3) and not sure if its a bug or just me. I'm using policy routing and route-maps to identify certain types of traffic by tcp port number using extended access-lists and then change the next-hop. Whats happening is that it works okay until the above access-list makes a match, after that all packets to that IP address regardless of port number get sent via the modified next hop. I'm wondering if I've got a) an IOS bug or if b) I need to turn off some kind of route caching/cef that works at layer 3 altho I've disabled everything I could think of on the interface Any thoughts? Steve -- Stephen J. Wilcox IP Services Manager, Opal Telecom http://www.opaltelecom.co.uk/ Tel: 0161 222 2000 Fax: 0161 222 2008
Current thread:
- Anyone use Cisco Policy Routing? Stephen J. Wilcox (Sep 14)
- Re: Anyone use Cisco Policy Routing? clarke (Sep 14)
- Re: Anyone use Cisco Policy Routing? clarke (Sep 14)
- Re: Anyone use Cisco Policy Routing? Mark O'Brien (Sep 14)
- 32 Old Slip down again Christopher X. Candreva (Sep 14)
- Old Slip Back Up Christopher X. Candreva (Sep 14)
- 32 Old Slip down again Christopher X. Candreva (Sep 14)
- Re: Anyone use Cisco Policy Routing? measl (Sep 15)
- Re: Anyone use Cisco Policy Routing? clarke (Sep 15)
- Re: Anyone use Cisco Policy Routing? Rodney Dunn (Sep 15)