From: mani poopal (mani_ccie@yahoo.com)
Date: Wed Nov 03 2004 - 15:48:01 GMT-3
Hi Group,
I have a small question, any good answers are appreciated
AS100 AS200 AS300
R1-----------------------------------------------R2, R3, R4--------------------------------------R5
lo 1=53.53.53.53/24
lo 2=63.63.6363/24
(full mesh and R2--ebgp to R1
R3&R4--ebgp to R5
Assume you area advertising 53.53.53.53.0/24 and 63.63.63.0/24 at R2(connects to R1 via ebgp). The requirment says I should stop advertising 53.53.53.0/24 network to any other as.
So from community attribute I thought of using no-export attribute.
My configs:
R2:
router bgp 200
neig R3&R4 remote-as 200
neig R3&R4 route-map ABC out
neig R3&R4 send community
network 53&54 mask 255.255.255.0
ip prefix-list setcomm 20 permit 53.53.53.0/24
route-map ABC permit 10
match ip prefix-list 20
set community no-export
route-map ABC permit 20
SO WITH ABOVE CONFIGS, I THINK R3&R4 WILL NOT ADVERTISE THE 53.53.53.0/24 NETWORK TO ANY OTHER EBGP PEERS(ANY OTHER AS). HOW CAN I TELL THE ROUTER R2 (ONE OF THE LOCALLY GENERATED ROUTE) TO STOP THIS ROUTE TO R1(ANOTHER DIRECTLY CONNECTED EBGP PEER). IS THERE IS ANY WAY TO USE COMMUNITY FOR THIS AND WHAT ARE THE COMMANDS.
thanks
Mani
B.ENG,A+,CCNA,CCNP,CCNP-VOICE, CSS1,CNA,MCSE
(416)431 9929
MANI_CCIE@YAHOO.COM
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