Armor G1 - OpenVPN Server and client – Connection between network

fbesuchet · June 2021

Hello,

I have 2 ZyXel Armor G1 routers in 2 different locations connected using Open VPN with the following configuration:

Router A:

OpenVPN Server
LAN IP: 10.0.0.1 / 255.255.255.0
PC A with IP 10.0.0.111 / 255.255.255.0

Router B:

Open VPN Client connected to Router A's OpenVPN Server
LAN IP: 10.0.1.1 / 255.255.255.0
PC B with IP 10.0.1.222 / 255.255.255.0

PC B connected on router B (OpenVPN client) can ping and connect to PC A on Router A using its IP 10.0.0.111. As far as I know, I did nothing special for this to work.

However, PC A connected to router A (OpenVPN Server) cannot ping and connect to PC B on Router B using its IP 10.0.1.222!

How can I make it possible for PCs connected to Router A be able to access PCs connected to Router B?

I don't know a lot about this but it seems I can add static routes. Is it correct?

If yes, it seems Armor G1 does not allow to define static route. Is it correct?

How can I do this?

Thank you for any help

Podo · June 2021

It's not related to static routes. It's about your VPN type.

You need devices that supports site to site VPN such as USG.

fbesuchet · June 2021

I did not know that! Thank you!

tonygibbs16 · July 2021

Podo said:

It's not related to static routes. It's about your VPN type.

You need devices that supports site to site VPN such as USG.

But once the tunnel is established, and I think that only the OpenVPN client can start the establishment, then why can traffic not go in both directions?

I agree that if you want either end to be able to establish the connection and have it stay up between two sites, then you need a site to site VPN.

Kind regards,
Tony

Armor G1 - OpenVPN Server and client – Connection between network

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