From: John Wong (johnwk@unimelb.edu.au)
Date: Thu Nov 04 2004 - 23:53:44 GMT-3
Hi,
Perhaps you need a permit all after your deny? i.e.
ip prefix-list AGG 10 deny 129.3.0.0/16
ip prefix-list AGG 20 permit 0.0.0.0/0
ccie2be wrote:
> Hi guys,
>
> I'm trying to filter an aggregate by using a neighbor x.x.x.x prefix-list
> statement. But, it seems like it's not working as expected. So far, I've
> been unable to figure out what I'm doing wrong.
>
> Essentially, the task requirement is to advertise an aggregate to some
> neighbors, but not to other neighbors. And, with the prefix filter I want to
> filter just the aggregate - nothing more and nothing less.
>
> Here's the config:
> ******************************
> ip prefix-list AGG deny 129.3.0.0/16
>
> router bgp 200
> aggregate-address 129.3.0.0 255.255.0.0
>
> neighbor x.x.x.x prefix-list AGG out
>
>
> *******************************
>
> It seems simple enough but after configuring this, the bgp tables are missing
> much more than just the AGGregate.
>
> I also tried using this prefix:
>
> ip prefix-list AGG permit 129.3.0.0/16 but that was worse.
>
> Can anyone tell me how I'm screwing up?
>
> TIA, Tim
>
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