I'm pretty much it for "reliable technician" for this one and while I've done failover with many other services I never had luck with DSL as a failover. Are there any routine sample configs for this type of setup?
I am going to make a couple of assumptions about your environment and assuming that my assumptions are correct I will make a suggestion about what you can do to use DSL as backup to T1.
I am assuming that your router that has both T1 and DSL has both interfaces configured and active. And I am assuming that your router has a static default route pointing out the T1 interface. (if the DSL is not configured and active (you can ping the next hop out the DSL interface) then this is a different problem and we need more information to be able to give you good suggestions. and if the default route is learned by some routing protocol then we need more information about that.)
As long as both interfaces are working and the default route is a static default route then my suggestion is this:
configure a floating static default route using the next hop out the DSL interface as the next hop in the floating static route. It might look something like this:
ip route 0.0.0.0 0.0.0.0 x.x.x.x 250
x.x.x.x is the next hop out the DSL interface and 250 is the weight of the floating static route.
I would suggest getting another router of smaller capacity and plugging in your DSL circuit into that line. You can have the DSL and the router plugged into the switch and once the router link fails then the traffic can be routed out the DSL. This way you are eliminating a single point of failure scenario.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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