09-20-2012 07:07 AM - edited 03-04-2019 05:37 PM
Existing Configuration:
router bgp 65457
redistribute eigrp 1 route-map xxxx
route-map xxxx, deny, sequence 5
Match clauses:
tag 65000 4809
Set clauses:
Policy routing matches: 0 packets, 0 bytes
route-map xxxx, permit, sequence 999
Match clauses:
Set clauses:
Policy routing matches: 0 packets, 0 bytes
show ip route 10.48.51.0
Routing entry for 10.48.48.0/22
New configuration to be added:
ip prefix-list IP_Route seq5 permit 10.48.51.0/22
route-map xxxx deny 6
ip address prefix-list IP_Route
Please note the prefix list does not have a correct network ID (the correct one is 10.48.48.0/22)
Can you tell me what would be the impact of inserting this route-map seq 6?
09-20-2012 08:05 AM
Hello Vinayaka,
> Can you tell me what would be the impact of inserting this route-map seq 6?
The new route-map clause will be inserted after the clause with sequence 5
The matching IP prefix, if it exists, 10.48.48.0/22 will be denied from redistribution from EIGRP into BGP and a BGP advertisement for the same prefix will be withdrawn.
There shouldn't be an impact other then this
Hope to help
Giuseppe
09-20-2012 08:07 AM
Hello Vinayaka,
The router will silently mask the address argument in the prefix-list entry with the mask, and configure the resulting appropriate network. See for yourself:
R1(config)#ip prefix-list IP_Route seq 5 permit 10.48.51.0/22
R1(config)#do show run | inc prefix-list
ip prefix-list IP_Route seq 5 permit 10.48.48.0/22
R1(config)#
So the behavior of the route-map should be completely normal, according to its individual blocks:
Best regards,
Peter
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