From: John Underhill (stepnwlf@magma.ca)
Date: Tue Jan 07 2003 - 11:51:06 GMT-3
That is obviously not the full config, only a snipit typed into an email..
the neighbors were some in a peer group, some external, all up and running.
What I really wanted, was that no matter what neighbor it was advertised to,
the additional AS numbers are prepended to this specific network, without
the use of a route map pointing to a particular neighbor..
----- Original Message -----
From: "Sage Vadi" <sagevadi@yahoo.co.uk>
To: "John Underhill" <stepnwlf@magma.ca>; <ccielab@groupstudy.com>
Sent: Tuesday, January 07, 2003 12:50 AM
Subject: Re: ASPATH
> John,
>
> Your config is not correct. The one you pasted below
> anyway. You've only indicated what network you are
> wanting BGP to advertise - this hasn't got much to do
> with prepending AS's to your neighbor.
>
> Example from CCO:
>
> router bgp x
> neighbor 192.168.42.4 route-map foo out
>
> route-map foo permit 10
> match ip address 1
> set as-path prepend 100
>
> To confirm: sh ip bgp
>
> Cheers,
> Sage
>
>
>
>
>
> --- John Underhill <stepnwlf@magma.ca> wrote: > Ok,
> one question before I call it a night, (the
> > white noise from the rack
> > churning away has me all but hallucinating..)
> > So, I have this BGP config, and I want to advertise
> > a network qualified by a
> > route map, and use this to prepend the as-path of
> > the specific route.. now
> > usually when you are performing an illegal
> > proceedure in BGP, it's good
> > enough to let you know, but the config goes ok, it
> > just doesn't work.. my
> > question is, can this work, or do I need to do this
> > with neighbor bound
> > route maps only? Example is below.
> > Thanks
> >
> > router bgp 100
> > netw 10.10.10.0 mask 255.255.255.0 route-map ASP
> >
> > ip prefix-list PREFIX permit 10.10.10.0/24
> > (with or without prefix list, it doesn't work..)
> > route-map ASP permit 10
> > match ip add prefix-list PREFIX
> > set as-path prepend 400 407
> > .
> >
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