L2TP Split Tunnel Manual Routes

Hello,

So we've set up a VPN using L2TP on the Ubiquiti USG. The setup works quite well for something that was never really meant to be a complete work from home solution. We set it up really quick only for us in the IT Department but we had to deploy it everyone due to the corona crisis.

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At the moment the biggest problem is because L2TP cannot push routes automatically all traffic is being tuneled through our work VPN which is of course causing bandwith issues.

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I had seen that you might be able to manually create thes routes and then push them out some other way. I have experimented but i havent much luck making the correct routes and getting the dns to work.

so basically we have a 192.168.3.0/27 and our main work network is on 192.168.0.0/23. Additionally it seems the USG assigned something between the network on a 10.255.255.0 subnet.

The idea would be to allow all traffic from the 192.168.3.0 subnet to access the 192.168.0.0 subnet but route all other traffic via the local connection.

Is there a way to do this