[c-nsp] BGP ip addresses re-route to specific link

[Arie Vayner (avayner)]

Dracul,

Be aware that many (most) ISPs would filter subnets longer than /24, so
your /28 would be most likely filtered (even if you direct upstream
would send it through).

Arie

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of swap m
Sent: Tuesday, January 05, 2010 10:02
To: Dracul
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] BGP ip addresses re-route to specific link

you can use "BGP Conditional Route Injection" to generate the /28. (it
shud
be a child subnet out of the parent /24). then filter the prefixes so
select
which all upstreams shud receive this injected subnet.

cheers


On Tue, Jan 5, 2010 at 11:05 AM, Dracul <chris.garzon at gmail.com> wrote:

> Hi there,
>
> I was wondering if you could do a segregate route, for specfic ip
addresses
> under BGP going only to a specific link.
> for example if I have /24 default route BGP pool and I want only /28
ip
> addresses using upstream1 and not by any
> account go through upstream2. The rest would still be using the usual
BGP
> routing behavior. THanks!
>
> regards,
> Chris
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