From: John (jgarrison1@austin.rr.com)
Date: Sat Jun 21 2008 - 22:12:28 ART
Matt,
Thats correct! Now whats killing me is that I had it configured just as you
show. In fact if you look at my original post you'll see that the only
difference is my prefix list for the "route source" is pointing at sw2, but it
did point at 150.1.3.3 and didn't work so I changed it. I'm clueless as to
what I'm doing wrong. I still have a page left to finish so I'll see if I can
get it to work on monday.
What really pisses me off is that I looked it up and I seemed to have it
configured right, and I did according to the docs and you and it didn't work.
Maybe I'm just a little burned out right now and missing the obvious, wouldn't
be the first time nor will it be the last
Peace
----- Original Message -----
From: Matt Bentley
To: John ; Cisco certification
Sent: Saturday, June 21, 2008 6:47 PM
Subject: Re: BGP inject map
Hi John:
So, from what I can tell, you are trying to reinject 150.1.7.0 from the
aggregate 150.1.0.0/20. I am assuming you are using IE workbooks - or at
least a similar format, - so I am assuming 150.1.8.8 is SW2's loop, etc.,
1. You are trying to reinject 150.1.7.0 from the aggregate 150.1.0.0/20
2. SW2 originally aggregated the prefix, but R6 is peering with R3
Here is how you'd get that prefix to show up on R6.
R6:
router bgp zz
bgp inject-map INJECTED_PREFIX exist-map PEERING_AGGREGATE
route-map INJECTED_PREFIX
set ip add pref INJECTED_PREFIX
route-map PEERING_AGGREGATE
match ip route-source prefix-list PEERING
match ip add prefix-list AGGREGATE
ip prefix-list INJECTED_PREFIX seq 5 permit 150.1.7.0/24
ip prefix-list PEERING seq 5 permit 150.1.3.3/32
ip prefix-list AGGREGATE seq 5 permit 150.1.0.0/20
HTH
On Sat, Jun 21, 2008 at 7:44 PM, John <jgarrison1@austin.rr.com> wrote:
So from the following information the bgp peer add is 150.1.3.3/32
correct?
R6(config)#do sh ip bgp 150.1.0.0
BGP routing table entry for 150.1.0.0/20, version 12
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
2 3
65078, (aggregated by 65078 150.1.8.8)
167.1.58.8 (metric 2716160) from 150.1.3.3 (150.1.3.3)
Origin IGP, metric 0, localpref 100, valid, internal,
atomic-aggregate,
best
Originator: 150.1.5.5, Cluster list: 150.1.3.3
----- Original Message ----- From: "Matt Bentley"
<mattdbentley@gmail.com>
To: "John" <jgarrison1@austin.rr.com>
Cc: <ccielab@groupstudy.com>
Sent: Saturday, June 21, 2008 5:08 PM
Subject: Re: BGP inject map
The BGP inject map exist route-map has two components.
route-map inject
set ip add pref PREF
route-map exist
match ip add route-source prefix-list PEERING_ADD
match ip add pref AGGREGATE
ip prefix-list PEERING_ADD seq 5 permit x.x.x.x/32
ip prefix-list AGGREGATE seq 5 permit y.y.y.y/z
ip prefix-list PREF seq 5 permit t.t.t.t/q
Peering address is exactly as you type it in under the BGP process
Aggregate is as it appears in BGP table
HTH
On Sat, Jun 21, 2008 at 6:13 PM, John <jgarrison1@austin.rr.com> wrote:
I can not figure out what I'm doing wrong. The only thing I can think
of
is
the route source. I've tried 150.1.3.3 the neighbor the route is
coming
from
and 167.1.58.8 which is the source of the aggregate route. I'm being
obtuse
any help would be greatly appreciated. The config is as follows.
bgp inject-map inject exist-map exist
route-map inject permit 10
set ip address prefix-list sw1lo0
route-map exist permit 10
match ip address prefix-list routesource agg
ip prefix-list agg seq 5 permit 150.1.0.0/20
!
ip prefix-list routesource seq 5 permit 167.1.58.8/32
!
ip prefix-list sw1lo0 seq 5 permit 150.1.7.0/24
R6(config)#do sh ip bgp 150.1.0.0
BGP routing table entry for 150.1.0.0/20, version 12
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
2 3
65078, (aggregated by 65078 150.1.8.8)
167.1.58.8 (metric 2716160) from 150.1.3.3 (150.1.3.3)
Origin IGP, metric 0, localpref 100, valid, internal,
atomic-aggregate,
best
Originator: 150.1.5.5, Cluster list: 150.1.3.3
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