broadband connectivity advice

Sean McMahon smcmahon at
Tue Jan 6 11:56:51 EST 2004

Where should I look for info on setting up dsl with linux?  On the setup kit
that came with my modem it says to instert the instalation cd and tell it
your setting up a second computer which doesn't help much.  The
configuration I have for my isp uses PPPOA with a dinamic ip and it does
have router capability.
----- Original Message ----- 
From: "Jacob Schmude" <jschmude at>
To: "Speakup is a screen review system for Linux." <speakup at>
Sent: Monday, January 05, 2004 5:27 PM
Subject: Re: broadband connectivity advice

> Hash: SHA1
> On Mon, 5 Jan 2004 18:44:20 -0500 (EST), Chuck Hallenbeck wrote:
> >1. What part of the setup must be done by my provider, and what
> >part by me? My provider advertises that they only support Windows
> >and Mac OS, but that's what Verizon said too.
> You hook the cable modem up in to your computer and your TV cable line,
and your computer connects through it. However, activation is done on the
> provider's end and you can't use it until they activate you, in the case
of adelphia (my provider) they activate you based on the mac address of your
> modem so even if you move you're still activated as long as you stay in
the area where they provide service.
> >>2. With DSL, I used the Roaring Penguin PPP-O-E scripts and
> >configuring, starting, and stopping my connection was a snap. Is
> >there any analogous tool for handling cable modem DHCP
> >connections?
> No, you don't need it. The cable modem will appear as a standard ethernet
device if you plug it in via USB, and if you plug it in via ethernet, you
just use it
> through your NIC. Either way, only thing you need is standard network
tools such as dhcpcd and ifconfig. In general, you don't "stop" a cable
> it's always on.
> NOTE on USB connectivity: Linux supports cable modems based on the CDC
standard, which most are. If yours is not, you may have to connect via
> ethernet. This means, that if you already use your ethernet card for home
networking, you're gonna need another NIC. If your modem isn't detected by
> hotplug subsystem, it may still be supported. Try loading the CDCEther
module in 2.4 kernels, or the usbnet module in 2.6 kernels. The cable modem
I use is
> a motorola surfboard sb-5100, which works fine with USB, though it isn't
acknowledged as being supported in the driver, the only slight quirk being
that after
> fedora's kudzu tool got done with it, it needed to be unplugged and
reset--turning on safe probing in kudzu fixed that. Same applies if
switching from a 2.4 to
> a 2.6 kernel, cable modem needs a reset.
> >3. I found lots of stuff to read about DSL, but precious little
> >about cable modem in Linux. Anyone know something useful I can
> >sink my teeth into?
> There used to be a cable-modem howto at the LDP, I think it's still there.
It's a bit dated (for instance it doesn't acknowledge that linux can use
most USB
> cable modems), but it may still be useful. In general there's precious
little to read because all standard networking configuration applies, so
there's really
> nothing special that needs to be done in most cases. If it works with mac
os x then it's a 99% chance that it works with linux as well, I've found
this to be the
> general rule for services and devices alike.
> >My system is a Slackware 9.1 distro with lots of bells and
> >whistles. But I have tasted a high speed connection and can
> >hardly bear to use a 56K dialup ISP again.
> Yeah, I know what ya mean.
> Version: PGP SDK 3.0
> DDtwERMogEYkHazokKNDu+Av
> =Bvm1
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