v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP space

Tue Feb 10 02:54:43 UTC 2009

Comtrend DSL modem use iptables in their code.  I discovered this while
trying to understood why small-MTU FTP breaks when issuing the PORT command.

Frank

-----Original Message-----
From: Ricky Beam [mailto:jfbeam at gmail.com] 
Sent: Monday, February 09, 2009 4:01 PM
To: Owen DeLong
Cc: nanog at nanog.org
Subject: Re: v6 & DSL / Cable modems [was: Private use of non-RFC1918 IP
space

<snip>

DSL and cable modems are extremely simple devices.  I'm amazed they have
any amount of "router" in them at all.  And I've yet to see one running
Linux. (the 2 popular brands around here -- westell and motorola -- run
vxworks.)

--Ricky