Re: OSPF filtering

From: Manouchehr Omari <manouchehr1979_at_gmail.com>
Date: Thu, 9 Dec 2010 11:02:23 -0500

Paste your config please.

On Thu, Dec 9, 2010 at 10:39 AM, Rares Donca <rares.donca_at_gmail.com> wrote:
> Hello all,
>
> I'm having a problem with OSPF filtering wtih distributed-list.
>
> The scenario is something like this. R6 is connected to R4 via Area 1, and
> to R1 through a virtual-link.
> R6 has two paths to network 150.1.3.3, which is in Area 0, learned from R4
> and R1 respectively.
> Since Area 1 has the transit capability and the path through R4 has a better
> cost, this route is
> placed in the routing table. However on R6 I filtered this specific route
> from R4 with distributed-list
> and route-map.
>
> Area 1
> R6 ------------- R4
> \
> \
> \Virtual-link
> \
> \
> R1
>
> After filtering, R6 is not placing the route through Area0 from R1 in the
> routing table.
>
> R6#show ip route 150.1.3.3
> % Subnet not in table
>
> If i disabled the transit capability on R6, then the route through R1 will
> be in the routing table.
>
> R6(config)#router ospf 1
> R6(config-router)#no capability transit
> R6(config-router)#end
> R6#show ip route 150.1.3.3
> Routing entry for 150.1.3.3/32
> Known via "ospf 1", distance 110, metric 1564, type intra area
> Redistributing via eigrp 10
> Advertised by eigrp 10 metric 100000 1000 255 1 1500
> Last update from 155.1.146.1 on FastEthernet0/0.146, 00:00:09 ago
> Routing Descriptor Blocks:
> * 155.1.146.1, from 150.1.3.3, 00:00:09 ago, via FastEthernet0/0.146
> Route metric is 1564, traffic share count is 1
>
> I don't really understand what is happening here.
>
> Thanks,
> Rares
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Thu Dec 09 2010 - 11:02:23 ART

This archive was generated by hypermail 2.2.0 : Sat Jan 01 2011 - 09:37:49 ART