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VPN/Communication between identical IP-Networks

A customer needs to build a VPN over Internet between two offices which both use the net 192.168.1.0 /24 as local Private LAN. I wanted to set up a Eth/Eth Router as internal IP-Packetfilter inside each local Network and doing a NET NAT (NET MAP). For this I would define HelpNet 1=192.168.255.0 /24 and Helpnet 2=192.168.245.0 /24. So a client of office 1 has to connect 192.168.245.10 if he wants to reach the 192.168.1.10 of the remote Private LAN of office 2. But I am not sure if this will work cause I need to NAT in both directions but cannot define INSIDE AND OUTSIDE NAT at an Interface (which would be needed!!) Maybe someone has a better idea?? Many thanks in advance. Matt

1 REPLY

Re: VPN/Communication between identical IP-Networks

Better idea: Replace one 192.168.1.0/24 by 192.168.2.0/24

No NAT, much easier troubleshooting and much easier configs.

Hope this helps

Martin

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