The Boston Diaries

The ongoing saga of a programmer who doesn't live in Boston, nor does he even like Boston, but yet named his weblog/journal “The Boston Diaries.”

Go figure.

Tuesday, May 16, 2006

That little routing issue

I also did manage to find a work-around for the little OSPF problem I've been having. What's happening is that on the customer's router, when the T-1 link is up, the routes, including the all important default route, are populated through OSPF. If the T-1 goes down, then all the OSPF generated routes disappear, including the all important default route.

Upshot—if the T-1 goes down, the customer can't see the Internet.

But oddly enough, when the T-1 goes down, OSPF still shows a neighbor connection through the DSL link. But it won't populate the routes.

The work-around? A static default route through the DSL connection but weighted so heavily that the default route through OSPF (in which case goes through the T-1) is preferred if it exists.

So now, the T-1 goes down, the OSPF routes disappear, leaving the static default route over the DSL so the customer can still see the Internet.

It works, but I don't like it.

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