Re: OT - eBGP ISP route manipulation

what happend with the returning traffic???

On Mon, Jun 24, 2013 at 2:39 PM, Joseph L. Brunner
<joe_at_affirmedsystems.com>wrote:

> Do a track object looking for 1.0.0.0/8
>
> If there, these static routes will work
>
>
> ip route 1.5.1.35 255.255.255.255 <next hop> track 10
> ip route 1.5.0.163 255.255.255.255 <next hop> track 10
>
> track 10 is looking for reachability to 1.0.0.0/8
>
> I have some more advanced ways to do this with eem's - but let me know
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Joe Sanchez
> Sent: Monday, June 24, 2013 2:58 PM
> To: ccielab_at_groupstudy.com
> Subject: OT - eBGP ISP route manipulation
>
> All,
>
> Here is a good one. Let's say you have a connection to an ISP and they
> are sending you a 1.0.0.0/8 but you only want to able to reach 1.5.1.35
> and
> 1.5.0.163 and you want BGP to run for the dynamic routing, but do not want
> to see the 1.0.0.0/8 becuase you are routing that network somewhere else.
> You are not limited to anything other than the ISP will not change
> anything and you must keep it as simple as possible.
>
> I've labbed this up with these things in mind.
>
> CPE (customer side)
>
> unsuppress-map (doesn't work)
> inject-map (didn't work)
> ip-sla (didn't try yet, with static routes et...) enhanced object tracking
> with IP-SLA using boolean and(or) ( haven't tried this yet).
>
> Let me know what you guys/gals think...
>
> Joe Sanchez
>
>
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Received on Tue Jun 25 2013 - 08:42:59 ART