IPSec VPN between HQ and Branch with colliding LAN segment

OGX SE Lv1Posted 17 Sep 2020 09:59

Last edited by OGX SE 17 Sep 2020 10:12.

I am trying to set up site-to-site IPSec VPN between HQ and Branch with LAN segment IP colliding as shown in the attachment below.

I did Tunnel NAT on the HQ to translate segment to and found out tunnel NAT is only used to solve colliding IP segment of branches to HQ.

IPSec VPN connection cannot be established because of colliding LAN segment. Is there any solution/advice to setup IPSec VPN from HQ to Branch?

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