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Router A w/VPN and Router B on Same network

Router A w/VPN and Router B on Same network

Router A w/VPN and Router B on Same network

I'm trying to set something up here.

We have two DSL lines as we have combined households.  Here's the deal.

Router/Gateway A ( is connected and DMZd to a Cisco RVS4000 VPN router.  Computers can go on the net and life is good.

Router/Gateway B ( when connected we get router behind router errors.  How can one have both routers attached so that B acts as a failsafe should A go down (I know the VPN will be inaccesable, but thats OK).  

All PCs in the house have both gateways listed in the NIC properties, but we need to avoid the router behind router errors.

Should I just have router B disable DHCP?  And just leave all PCs with both gateways defined?

Thank You.

RE: Router A w/VPN and Router B on Same network

Cisco also sells routers that will allow 2 internet connections, this is what you want.

RE: Router A w/VPN and Router B on Same network

You need to add static routes in the routing table of the machines. I found an article that starts with the basics of routing then builds on that onto how advanced routing works. It is very well put togethe and help me a lot. If you need it you will be able to do what you want as it explains how routers works  

RE: Router A w/VPN and Router B on Same network

Great, thanks.  I'll check it out now.

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