1::1/128 + 2::2/128 - GRH Anomalies Delta (2012-08-17)

Mike Oliver, KT2T mwoliver at gmail.com
Fri Aug 17 14:08:08 CEST 2012


On Fri, Aug 17, 2012 at 7:16 AM, Jared Mauch <jared at puck.nether.net> wrote:
>
> Sadly just one.  It's not like the default Cisco policy is to block routes.
>
> The path to a route leak is:
>
> router bgp X
>  neighbor 2002::1:2:3:4 remote-as 5678
>
> TCP can come up before the next line is typed/pasted, even if they did
> configure a policy.

Of the varieties of IOS that I frequent, it's possible (and preferred
by me) to do the following:

router bgp X
neighbor 2002::1:2:3:4 remote-as 5678 shut
<policies, filters, etc.>
no neighbor 2002::1:2:3:4 shut

This provides the opportunity to define your necessary filters and
policies prior to the session startup.

-- 
Mike Oliver, KT2T


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