[Nolug] netbsd and cox cable modems

Joey,

You may be caught in the "DOCSIS" security loop. If you have only
one IP on the account... The way things are currently set to
prevent IP spoofing and other issues, is that the MAC of the first
device connected behind a cable modem is captured into the ARP
Cache and is the only one that should be able to pull an IP until it
expires (usually 8 hours) or until it is manually reset.

Good bad or otherwise it does cause us issues and customers
pains. Hey, even when I change devices or when I'm playing with
different boxes I have to reset mine.

Charles Jouglard
CHSI System Engineer
Cox New Orleans
504-417-3627

My opinions are my own, they are not endorsed by Cox
Communications, Inc., Cox Louisiana, LLC, Cox.Net or anyone
else other than myself. If anyone thinks otherwise, they are sadly
mistaken, Blah, Blah, Blah, Blah, Blah. Thank you.

From: Joey Kelly <joey@joeykelly.net>
Date: 2003/10/12 Sun PM 07:08:05 EDT
To: nolug@joeykelly.net
Subject: [Nolug] netbsd and cox cable modems

Anyone run netbsd and use dhcp? I can't pull an IP, no matter what
I do. This
is my first attempt at using netbsd and cox.

Ideas? Thanks.

-- 
Joey Kelly
< Minister of the Gospel | Computer Networking Consultant >
http://joeykelly.net
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