cox.net FYI

[Nancy Sollars]

I agree with George here,

As for the connection now with Cox after the @home fiasco they are locking
the connection to the Mac address which on a standard home connection is a 1
connection deal.

hence:-

 IP of modem   Modem Mac
 IP of Cpe        Cpe Mac

ok considering the above if you then swap around the cpe device of course
the mac address is different, now because the connection locks your old mac
usually what needs to happen to get the new Cpe device to work is to have
cox tech support wipe it out their end.

this is prolly what they did when they asked you to plug the computer
directly to the modem.

and the soul reason why the new connection was instantaneous.

HTH

Nige

----- Original Message -----
From: "George Toft" <george@georgetoft.com>
To: <plug-discuss@lists.plug.phoenix.az.us>
Sent: Saturday, February 09, 2002 12:09 PM
Subject: Re: cox.net FYI


> Hi Lisa,
>
> I highly recommend this configuration (bear with the ASCII art):
>
> Cox ---- modem --- firewall --- hub/switch ---- computer
>                                    +--- computer
>                                    +--- computer
>                                    +--- computer
>                                    +--- computer
>
>
> The main benefit here is that your ISP only sees one MAC and
> you can have as many computers on the backside as you have
> money/electricity to support (my record was 10 computers on
> a cable modem service that only allowed one computer per IP
> address).
>
> Another benefit is when the CSR tells you to reboot Windows,
> you log into the firewall (of course it's a Linux box, right?),
> type (as root):
> ifdown eth0; sleep 10; ifup eth0; ifconfig -a
> (assuming eth0 is the public side) then go to your workstation,
> play the Windows boot up music so they think you've rebooted,
> and then you can get down to troubleshooting the real issue.
>
> The firewall uses DHCP on the public side, private IPs on
> the backside, and is a Linux box with NAT enabled.  I have
> two examples of this setup on my web site (one for cable and
> one for DSL).
>
> Regards,
>
> George
>
>
> Lisa Winkler wrote:
> >
> > I have been using 2 @home ips.  They stopped working yesterday.  I
couldn't reach a DHCP server, so I couldn't get a cox ip.
> >
> > I finally got through to tech support (the wait is 1.5 hours) and the
guy told me to plug the modem directly into the computer instead of going
through the hub.  I know this is on their standard list of things to tell
the user to do and explained to the guy that it wouldn't solve anything if
the DHCP server was unreachable.  Finally I agreed to do it anyway.  I was
connected instantly!
> >
> > The t.s. guy explained that the software on their DHCP server (it's
probably running windows!) is having problems when the modem reports that
there are 2 different MAC addresses behind it.  Apparently when this happens
it just refuses to respond to my request.  He says they are working on it,
doesn't know when it will be fixed, but until it is you won't be able to
have 2 computers with real-world IPs connected because if they are both up
at the same time the DHCP server will refuse to assign them ips.  I guess
this is my official kick in the ass to try to get NAT working (instead of a
bridge as I am currently using).
> >
> > Anyway, just a public service in case anyone else is dead in the water
but still reading mail!
> >
> > Lisa
> >
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