Can't connect two networks with "site-by-site VPN"

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afini69
Posts: 2
Joined: Tue Jul 21, 2020 9:27 pm

Can't connect two networks with "site-by-site VPN"

Post by afini69 » Tue Jul 21, 2020 9:52 pm

Good day.

I ask the help of specialists. I am not a special master in VPN and in English :), don't scold me too much.
The problem is as follows ...
There are two local networks: Network1 (192.168.0.0) and Network2 (192.168.1.0). They are not physically connected. Each has an Internet connection and a static address. Both have access to the Internet through a router in which port forwarding is done.
On one computer in Network1 with the address (192.168.0.105), I install SoftEther VPN Server. In "Easy Setup" I select the item "Remote Access VPN Server" and "Site -by -Site Server or VPN Bridge". I choose the role "Center". I create users.
On another computer in Network2 with the address (192.168.1.102), I install SoftEther VPN Server. In "Easy Setup" I select the item "Remote Access VPN Server" and "Site -by -Site Server or VPN Bridge". I choose the role "Edge". And at step 2, I set up a connection to the "Center" at its static address on the Internet. The connection goes through, Center and Edge say everything is connected. To the network card of the computer from Network1 I assign an additional free address from Network2, and to the network card of the computer from Network2 I assign an additional free address from Network1. Everything seems to be fine, but ... Ping does not work ...
Help me... :)

drkrool
Posts: 93
Joined: Mon May 25, 2020 4:38 am
Location: Quebec, Canada

Re: Can't connect two networks with "site-by-site VPN"

Post by drkrool » Mon Jul 27, 2020 3:11 pm

You won't be able to ping the other server if you use only 1 network card per server. Try to ping another computer in the distant network (that you can already ping from the same network) instead, or add a 2nd network card dedicated to local bridge on each server if necessary to access the server from the other network

This isn't a site to site limitation but it's in the way softether is made. The way I see it is that it litterally exits the network card and can't find a way to come back to itself, hence why it's working with 2 network card per server

afini69
Posts: 2
Joined: Tue Jul 21, 2020 9:27 pm

Re: Can't connect two networks with "site-by-site VPN"

Post by afini69 » Mon Aug 10, 2020 2:26 pm

thanks, I'll try

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