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From: Tom Rymes <trymes@rymes.com>
To: development@lists.ipfire.org
Subject: IPSec and overlapping subnets
Date: Mon, 14 Sep 2020 14:40:55 -0400	[thread overview]
Message-ID: <661d35dc-a096-c8d7-b99c-4c355c497767@rymes.com> (raw)

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We have a situation that we have always worked to avoid in the past by 
renumbering networks, but it's not an option this time. Namely, We need 
to connect our subnet 10.100.0.0/23 over an IPSec tunnel to a location 
that has an overlapping subnet.

So, we need to NAT traffic back and forth, and I'm frankly not certain 
how to achieve it. Basically, the remote side wants to pretend that we 
are 10.100.252.0/23, so we need to do some magic to translate the source 
and destnation subnets.

Can anyone point out a good method to achieve this?

Tom

                 reply	other threads:[~2020-09-14 18:40 UTC|newest]

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