[quagga-users 11320] Re: Inbound route-map filter with Quagga (BGP)
quagga-users at alexis.users.panix.com
Fri Jan 22 00:38:42 GMT 2010
On Jan 21, 2010, at 12:13 PM, Nick Hilliard wrote:
> On 21/01/2010 16:23, Sim wrote:
>> Can I filter specific inbound network with Quagga (bgp)?
> yes. You can use distribute-lists or route maps.
>> Something like this:
>> router bgp 111
>> neighbor 188.8.131.52 route-map example-in in
>> route-map example-in ....
>> filter 192.168.0.0/16
> route-map example-in in
> match ip address 100
> access-list 100 permit ip host 192.168.0.0 host 255.255.0.0
> router bgp 111
> neighbor 184.108.40.206 distribute-list 100 in
> For smaller scale systems, distribute-lists are fine. For larger
> networks, you really need to use route-maps, as they are much more
Alternatively, you can specify a prefix-list either directly (neighbor
x.x.x.x prefix list...) or inside a route-map. Prefix-lists are a lot
easier to read and type, though they don't allow for oddball prefix
masking (which is virtually never used anyway).
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