I am trying to setup load balacning and failover over two WAN links on my 1811. One provider is cable and the other is dsl. Each has a modem and no pppoe/authentication is required. Also I have a single static IP from each ISP. I have a vlan that is natted on the 8 port switch portion of the router. So far I have setup 2 static default routes, one for each isp and 2 ip nat inside sources, one for each interface. However, when one link goes down the traffic routed to that interface doesn't switch over to the other unless the cable from the modem to the router is physically down. What do I need to do to set this up? Also to make things a bit more complicated I need to setup a vpn tunnel that will failover from one isp to the other if one goes down. I have read that oer is one way to do this, but I am a bit lost on how. Or would it be possible to run a routing protocol over the tunnel and have that determine what route is up? I am new to using routing protocols so details on how to do it would help a ton. Any advise would be greatly appreciated.
I have this problem too.