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[Openvpn-users] routing setup: wireless subnet through tunnel


  • Subject: [Openvpn-users] routing setup: wireless subnet through tunnel
  • From: "Sancho2k.net Lists" <lists@xxxxxxxxxxxx>
  • Date: Mon, 05 Jan 2004 21:51:32 -0700

I have set up an OpenVPN tunnel between a host on my wireless network (10.0.2.20) and a server on my internal LAN (10.0.1.4). I can ping opposite ends of the tunnel from each of the hosts and want to set up the systems so that all traffic from the wireless client goes over the encrypted tunnel and all routes perform correctly.


+-----+ 10.0.2.1 | Wireless (10.0.2.0/24) INTERNET ----| R |----------------| Network +-----+ | +-+ |10.0.1.1 |-- | | | | +-+ | 10.0.2.20 ------------ | ^ (tun0: 10.0.3.2) +-+ | | | | | | <========================= <= OpenVPN tunnel +-+ (tun0: 10.0.3.1) 10.0.1.4

The current setup requires that the wireless clients first make an ssh connection to 10.0.2.1 (thier default gateway) to authenticate to the firewall/router (R) (OpenBSD/authpf). An SSH connection is maintained so traffic travels between the wireless clients and the rest of the network. I'm not sure if introducing openvpn will require that I reconfigure this aspect of the setup.

Is the proper setup to configure 10.0.3.1 as the default gateway for the wireless clients so that all traffic flows over the openvpn tunnel?

TIA,

DS

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