Does anyone have experience or a sample config of using an ASR for a combination of nat, ebgp and ibgp, and setting the outside interface as a loopback?
I've been following this article; but traffic dies when i remove it from gig 0/0/0 which is our main providers ptp peering link.
When the outside is set to the gig 0/0/0, life is good, nat works great.
I setup a second loopback with a public /32 IP. I can get to this from the outside. I have added ip nat outside to this interface. show ip nat stat, shows up with int's gig 0/0/0 and loopback 1. This is great.
Now, when I go and remove ip nat outside from gig 0/0/0 to force everything through the loopback, nat traffic dies.
this is all part of a bigger problem, where i'm trying to setup a second bgp peering session on a secondary router, and have that router and this router peered internally. (right now when that connection is enabled, nat'd clients can't get traffic from the second peer, which makes sense)
anyone have any experience with this? any valuable insights?
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