I have two routers, a stock Linksys and a Netgear running DD-WRT. What I would like to accomplish is the following:
I would like to have both routers running on the same subnet. Have the Linksys act as the primary, routing to the internet, and running DHCP. Have the Netgear (DD-WRT) act as an OpenVPN client for a commercial VPN service. (This router would have the Linksys as its gateway to the internet.) Then each device on the subnet would individually choose which gateway to use for accessing the outside world -- the Linksys (non-VPN) or the Netgear (VPN). That way it would be possible to switch back and forth between gateways, as necessary, without needing to change which router one is physically connected to.
Is that reasonable? Possible?
I'd really appreciate some advice on what I need to do to make this happen! Thanks.
(I've search all day for solutions, and most seem to involve having a double-NAT situation, and switching the network you're connected to. I'd rather not do this.)