Default route with object tracking

Dan White dwhite at olp.net
Mon Feb 1 09:31:02 CST 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 google.com, but am not sure if after I
>resolve google.com 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 8.8.8.8
and 8.8.4.4.

-- 
Dan White




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