Communicate two remote sites with identical IP addressing plan via an ipsec VPN tunnel

Albert84

Good morning,

Sorry to insist on my PB, I want to communicate between two remote sites through an IPSEC VPN tunnel having an identical IP addressing plan: 192.168.0.0/21 gateway 192.168.1.254 DNS 192.168.1.50/192.168.1.55Unless I'm mistaken, it's possible by applying a 1:1 NAT rule. If possible, could you give me instructions on how to configure my two routers: Zyxel ATP800 site A and Zyxel USG Flex 100 site B

Thank you in advance.

Sincerely,

Zyxel_Kay

Hi @Albert84

To better assist you, could you please provide additional details about your network setup? If possible, sharing a network topology of your VPN configuration would be helpful.

If you're looking to set up a policy-based VPN with NAT, please refer to the following guide for step-by-step instructions:

https://community.zyxel.com/en/discussion/21051/implement-nat-over-ipsec-vpn-by-policy-based-vpn

Zyxel_Kay

Hi @Albert84

To better assist you, could you please provide additional details about your network setup? If possible, sharing a network topology of your VPN configuration would be helpful.

If you're looking to set up a policy-based VPN with NAT, please refer to the following guide for step-by-step instructions:

https://community.zyxel.com/en/discussion/21051/implement-nat-over-ipsec-vpn-by-policy-based-vpn