Serial Lines failing over - Sanity check

[trismegistus]

Hi

I have a 1760 with 2 serial lines going to different destinations. I want s0 to fail over to s1 in the event of s0 going down. No problem.

I also want the traffic to fail back over to s0 from s1 if s0 becomes available.

Would I be correct in assuming that 2 static routes, but a more favourable routing metric on s1 will achieve this?

I suspect there may be pitfalls surrounding this, but have never specifically configured this scenario.

Has anyone? Is it straight forward?

 

[CaMedic]

you are correct,
ip route 0.0.0.0 0.0.0.0 s1
ip route 0.0.0.0 0.0.0.0 s2 100

if the first interface fails, it will remove the default route from the routing table...

One issue is, what ip addresses are routed from the upstream providers? is it the same upstream provider on both t1's if so good, if not, then you need to look into BGP..

Have Fun...