Need help with openvpn configuration on OpenWrt router

Installing and Using OpenWrt
8

The problem here is that you're running the travel router as a dumb AP, but following instructions as if it were a LAN->WAN router.

In the dumb AP, wireless users are on LAN and they are bridged directly to your house main router. They'll never be aware that they should route through the VPN instead. They really can't, since you'd need a DHCP server to tell them to use your router as the default gateway, and that will interfere with other devices on the LAN that should get DHCP instructions to use the main router as the default gateway.

There are two approaches to remedy this.

  1. Set up as a LAN-WAN router then follow regular instructions to install VPN client.
  2. Add a new network and bridge, e.g. vpnuser, and firewall rules to forward vpnuser->vpn tunnel

I suggest 1 as simpler for a beginner.

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