Need direction on 2610 router config

[wdoellefeld]

Have a 2610 with 3 interfaces, 2 were active before and I am turning up another. This router is placed external, I have another 2610 on the internal side.

ethernet0 = LAN

ethernet1 = Wireless ISP (just added)

serial0 = T1

My question is with routing but I'd also like to implement some fail-over as well.

I have "ip route 0.0.0.0 0.0.0.0 serial1" in place and I know I have to add the route for ethernet1 as well. I've heard that having two routes like this can cause packet loss as well as slowdown because of caching. Is this true and how can I prevent this?

On the fail-over side I have no clue how to implement. Any ideas would be appreciated.

Thanks!

[prafuljaded]

Add "ip route 0.0.0.0 0.0.0.0 ethernet1 200" so that T1 is your primary connection, if it fails traffic goes via ethernet1( secondary connection)

[wdoellefeld]

Thanks for the reply prafuljaded!

makes me think "why didn't I think of that". I know why though.. experience.

So this is a different cost i shouldn't have to worry about the caching issue if it even exists?