OK, thanks, then thats perfectly clear! And in that case, is there any way in
R2 acting as FR hub without any subinterface (ospf network-type broadcast
without neighbor statements), to prefer the path to 13.13.11.11/32 via R5
before R4? Or is the only option to influence the path in R2, when doing the
redistribution in R5?
Best regards
Per> From: [EMAIL PROTECTED]> To: [EMAIL PROTECTED];
[email protected]> Subject: RE: [OSL | CCIE_RS] OSPF distance for
specific prefix form specificneighbor> Date: Wed, 27 Feb 2008 09:23:04 -0500> >
Administrative distance is not used to select between two paths within the>
same protocol. You'll need to use metrics of some sort to work on this. > > AD
change is only done AFTER OSPF selects its best path, so you could prefer> over
EIGRP or some other protocol if you wanted.> > HTH,> > > Scott Morris, CCIE4
(R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE-M> #153, JNCIS-ER, CISSP,
et al.> CCSI/JNCI-M/JNCI-ER> VP - Technical Training - IPexpert, Inc.> IPexpert
Sr. Technical Instructor> > A Cisco Learning Partner - We Accept Learning
Credits!> > [EMAIL PROTECTED]> > > > Telephone: +1.810.326.1444> Fax:
+1.810.454.0130> http://www.ipexpert.com> > > > > > -----Original Message----->
From: [EMAIL PROTECTED]> [mailto:[EMAIL PROTECTED] On Behalf Of Per Helm> Sent:
Wednesday, February 27, 2008 5:09 AM> To: [email protected]> Subject:
[OSL | CCIE_RS] OSPF distance for specific prefix form> specificneighbor> > > >
Hi all,> > > I'm confused regarding setting ospf distance for a specific prefix
from a> specific neighbor (router-id) in OSPF. I have the same equal-cost
prefix> (13.13.11.11/32) in R2, from two OSPF neighbors R4 (rid 13.134.4) and
R5> (rid 13.13.5.5) The network between the three is frame-relay, ospf>
network-type broadcast. What I want to do in R2 is to prefer the path to>
13.13.11.11 via 13.13.5.5 by influencing the distance for this prefix from>
this particular neighbor. The two routers R4 and R5 have the 13.13.11.1/32>
from internal EIGRP, and redistributes this to OSPF. R2 is only running> OSPF.>
> > The routing-table for this prefix in R2 before manipulating the distance;>
> > R2#sh ip ro 13.13.11.11> Routing entry for 13.13.11.11/32> Known via "ospf
1", distance 110, metric 20 Tag 2, type extern 2, forward> metric 195 Last
update from 13.13.9.5 on Serial0, 00:00:09 ago Routing> Descriptor Blocks:>
13.13.9.5, from 13.13.5.5, 00:00:09 ago, via Serial0 Route metric is 20,>
traffic share count is 1 Route tag 2> * 13.13.9.4, from 13.13.4.4, 00:00:09
ago, via Serial0 Route metric is 20,> traffic share count is 1 Route tag 2> > >
R2#sh ip ospf neig> > > Neighbor ID Pri State Dead Time Address Interface>
13.13.4.4 0 FULL/DROTHER 00:00:37 13.13.9.4 Serial0> 13.13.5.5 0 FULL/DROTHER
00:00:34 13.13.9.5 Serial0> > > Now I'm reconfiguring R2 according to the
below;> > > router ospf 1> distance 50 13.13.5.5 0.0.0.0 2> > access-list 2
permit 13.13.11.11> > The routing-table in R2 for this prefix after
manipulating the distance;> > R2#sh ip ro 13.13.11.11> Routing entry for
13.13.11.11/32> Known via "ospf 1", distance 50, metric 20 Tag 2, type extern
2, forward> metric 195 Last update from 13.13.9.5 on Serial0, 00:00:08 ago
Routing> Descriptor Blocks:> 13.13.9.5, from 13.13.5.5, 00:00:08 ago, via
Serial0 Route metric is 20,> traffic share count is 1 Route tag 2> * 13.13.9.4,
from 13.13.4.4, 00:00:08 ago, via Serial0 Route metric is 20,> traffic share
count is 1 Route tag 2> > Now as you can see the distance for this prefix has
changed to 50, but I> still do have equal-cost via both of the neighbors!!??> >
> How come R2 is not prefering the prefix from R5 before the path via R4?> > >
Thanks in advance and Best Regards> > > > >
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