Combination of NAT and BGP

(Abhishek M) #1

Consider the following figure:
image
In this setup, how when the GW3 learns route from GW1 and GW2 and does translation via NAT, what is the impact on the updates to next hop routers (GW4 and GW5) ?
Please provide some sample configurations also.

(Rene Molenaar) #2

Hi Abhishek,

What neighbor adjacencies do you want to use between your routers? BGP between GW1-GW3, GW2-GW3, GW3-GW4, and GW3-GW5?

Rene

(Abhishek M) #3

Hi Rene
The BGP is used between GW1-GW3, GW2-GW3, GW3-GW4, and GW3-GW5. The requirement is, GW3 is a CGNAT box. Please suggest your opinion on this query.
Abhishek