How to Stop DHCP requests over the VPN

[bapo16]

I have two local networks, both in the same range, 192.168.0.x

If a user connects to office 1 where the VPN server is then they get a DHCP from my local DHCP server and get the right Gateway.

If a user connects to Office 2 where the Client is then they get a DHCP from either the DHCP in Office 1 or in office 2 and therefore if they got it from Office 1 they get the wrong gateway and the internet connection is very slow.

Is there s way to stop ARP requests from going over the VPN?

[kh_tsang]

By using ebtables on linux.

[bapo16]

I am not a linux guy, and both sites are running Windows OS servers.

[kh_tsang]

Try to filter UDP port 67 and 68 on the hub, on either side or both.

[thisjun]

Please increase metric value of virtual NIC of the client.