[GRLUG] Comcast & dynamic DNS

[Roberto Villarreal]

The better question is, why would they care?  Sounds like they are up to 
something fishy... common sense would say that all things being equals, they 
would prefer you to use somebody elses's hardward/bandwidth, unless they are 
hijacking DNS requests or using requests for tracking purposes... :-(

But to answer your question, a simple packet scan should be able to tell them 
where you're getting DNS from...

Roberto

On Tuesday 28 March 2006 08:40, john-thomas richards wrote:
> I received a letter from Comcast (addressed directly to me) that indicated
> I have to reconfigure my system to utilize dynamic DNS rather than
> specifying my own DNS servers.  I wonder if this is a general letter sent
> to all Comcast customers or if Comcast somehow knows I do not use their
> lousy DNS servers. The letter stated that I could lose my connectivity if I
> failed to reconfigure (I believe it used this language; I could be mistaken
> since I am relying on my memory).  Is it possible for Comcast to know with
> certainty how my system is configured for DNS?  (I use a Linksys route
> provided by Vonage.)