OpenVPN Support Forum

Hi guys,

I have openvpn server and some clients. I'd like to route all the traffic from one client to the internet via another client. For example:

• openvpn server tun network is 10.10.11.0/24
  client 1 tun0 address is 10.10.11.10, eth0 address is 192.168.1.10
  client 2 tun0 address is 10.10.11.20, eth0 address is 192.168.2.10

I'd like client 1 to go to the internet thru client 2's internet connection. The obvious way would be to put

• iroute 1.0.0.0 255.0.0.0
  iroute 2.0.0.0 255.0.0.0
  iroute 3.0.0.0 255.0.0.0
  . . . . . .
  
  iroute 254.0.0.0 255.0.0.0
  iroute 255.0.0.0 255.0.0.0

to client 2 ccd file and add some information to the routing table of the openvpn server like this:

• ip add default 10.10.11.2 table 120
  ip rule add from 10.10.11.10 table 120

this way works fine when there are only client 1 and client 2, but if I want client 3 to go to the internet via clent 4's connection at the same time it doesn't work, as iroute records in client 2 and client 4 ccd files produce ambiguous rules in the routing table. The question is how to make possible to route traffic from client 1 to the internet via client 2's computer and from client3 to the internet via client 4's computer at the same time.

Thank you, Dmitry