Re: BGP and NAT

From: Peter Van Oene (pvo@xxxxxxxxxxxx)
Date: Sat Apr 21 2001 - 16:45:51 GMT-3


   
You should be able to set next hop addresses on a per peer basis and thus achie
ve your goal. However, routers behind firewalls is something I haven't seen mu
ch of. What is the reasoning for such a design?

Pete

*********** REPLY SEPARATOR ***********

On 4/22/2001 at 2:41 AM Darren Hosking wrote:

>I'm trying to configure BGP with the EBGP connections over NAT (ie one BGP
>router using registered addresses, the other using private addresses with a
>static NAT translation for the EBGP peer to connect to). I receive the
>routes for the other AS no problems but believe I will have an issue with
>the next-hop of routes I advertise.
>
>What address is used for the next-hop address by default and for neighbor
>next-hop-self?
>
>If I use a route-map to set the next-hop address of outbound BGP routes,
>can
>I set it to a registered IP address known to the peer but not known to the
>IGP so the neighbor gets the correct registered address for routes
>advertised?
>
>Is BGP with NAT a reasonable thing to do? If not, how can you have multiple
>connections to ISP's behind (say) PIX firewalls?
>
> Darren
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d
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