Default route with object tracking

Dan White dwhite at
Mon Feb 1 15:31:02 UTC 2010

On 01/02/10 10:13 -0500, Andrey Gordon wrote:
>Hi list.
>I'd like to setup my default routes to the Interwebz to be conditional on
>reachability of something on the Interwebz. I got two different ISPs (no
>BGP). I'm trying to figure out what would be a reliable object to track?
>Meaning, it's probably not reasonable to track my ISPs default gateway,
>since it does not protect me from someone on the ISP side screwing up. I'm
>thinking of tracking something like, but am not sure if after I
>resolve for the first time, it will be simply tracking an
>arbitrary server (or some load balancer).
>I wanted to see what experienced folks think is a reliable tracking target.
>Any comments are much appreciated.

Publicly advertised DNS server IPs should be good, such as google's

Dan White

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