Sounds like a great case for IPv6 as you won’t need the NAT :)
FRR can do AF IPv4 over IPv6 connections
Else tunnels…

On 26 May 2026, at 22:31, Joe Maimon wrote:

The use case is disseminating IP reputation via-ebgp-mh as cookie cutter as possible.

hvisage@hevis.co.za wrote:

On 29 Apr 2026, at 22:00, Joe Maimon wrote:

Google suggests that FRR does support that, differentiating between router-id or asn or even port numbers

AI is known, and I’ve experienced it especially w.r.t. FRR — to hallucinate.

However all I see is that it produces conflict/collision.

Any insight would be appreciated.

Hmm… explain how you’ll route IPs to a NAT and the NAT would know to route to the right IPs behind it… why not have the BGP session on the NAT device, and the NAT device have the BGP sessions to the non-NATted IPs ?

Would love to know/understand this use case, as you are basically making an IPv6 motivation.

Hendrik Visage

hvisage@hevis.co.za

HeViS.Co Systems Pty Ltd

https://www.envisage.co.za