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Posted by Warren on April 4, 2005, 9:44 am
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Elmo P. Shagnasty wrote:
>
>> They may be DOCSIS compliant, but
>> that's only the first level of compatibility. The cable company has to be
>> willing to support the modem with config files, and firmware updates.
>
> Ummmm, DOCSIS compliant means the cable company can by definition
> support the unit with config files.
>
> As for firmware updates....no, they don't.
DOCSIS compliant means the modem meets a number of standards. The modem has
or does certain things, and hasn't or doesn't do certain other things. There
is a whole lot of room between the does and the doesn't, and quite a bit of
that involves things that can be set within the config file. If the cable
company is only setting generic settings, a generic config file could be
sent to all the modems, and should work. But that's not the case for most
cable companies. That's one of the reasons why after the recent upgrades
some specific modems had problems: Features beyond the DOCSIS standard being
accessed with the config files.
And I'm not sure what you mean by "no, they don't" regarding firmware
updates. DOCSIS modem firmware updates are routinely pushed-out by the cable
company. In most cases they can't be done from the user side of the modem,
and even in the cases that they are, they can be rewritten from the cable
company side. Some modems even have specific firmware updates for specific
cable companies. Sometimes this goes hand-in-hand with certain parameters in
the config file.
These are just some of the reasons why cable companies have lists of allowed
modems that don't match the list of DOCSIS approved modems.
--
Warren H.
==========
Disclaimer: My views reflect those of myself, and not my
employer, my friends, nor (as she often tells me) my wife.
Any resemblance to the views of anybody living or dead is
coincidental. No animals were hurt in the writing of this
response -- unless you count my dog who desperately wants
to go outside now.
Care for your landscape with Black and Decker cordless tools
http://www.holzemville.com/mall/blackanddecker/index.html
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Posted by Elmo P. Shagnasty on April 4, 2005, 10:15 pm
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> DOCSIS compliant means the modem meets a number of standards. The modem has
> or does certain things, and hasn't or doesn't do certain other things. There
> is a whole lot of room between the does and the doesn't, and quite a bit of
> that involves things that can be set within the config file. If the cable
> company is only setting generic settings, a generic config file could be
> sent to all the modems, and should work. But that's not the case for most
> cable companies.
I beg to differ.
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Posted by Elmo P. Shagnasty on April 4, 2005, 10:15 pm
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> And I'm not sure what you mean by "no, they don't" regarding firmware
> updates. DOCSIS modem firmware updates are routinely pushed-out by the cable
> company.
I beg to differ here, too.
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Posted by Warren on April 4, 2005, 7:24 pm
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Elmo P. Shagnasty wrote:
>
>> And I'm not sure what you mean by "no, they don't" regarding firmware
>> updates. DOCSIS modem firmware updates are routinely pushed-out by the
>> cable
>> company.
>
> I beg to differ here, too.
>
Beg all you want. It doesn't change reality.
--
Warren H.
==========
Disclaimer: My views reflect those of myself, and not my
employer, my friends, nor (as she often tells me) my wife.
Any resemblance to the views of anybody living or dead is
coincidental. No animals were hurt in the writing of this
response -- unless you count my dog who desperately wants
to go outside now.
Care for your landscape with Black and Decker cordless tools
http://www.holzemville.com/mall/blackanddecker/index.html
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Posted by David on April 3, 2005, 7:31 pm
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No, not ALL cable modems are external. I'm trying to find one that's
internal (I'm looking at the Zoom 5001) that also works with linux.
The zoom 5001 is DOCSIS 1.0 out of the box and can(I've heard) be
upgraded to DOCSIS 1.1.
If you want to set it up in a computer you have to enable ip forwarding,
probably NAT, and possibly a firewall and dhcp. This is why most plp go
with external boxes - simplicity. That and the fact that external boxes
seem to be the only thing supported by most cable providers.
Fitting the internal cable modem in a SFF case like a shuttle along with
other NIC's is (theoretically) doable assuming you have enough PCI slots.
Good luck with this, I'm having a hard time figuring it out as well,
Cheers,
David
Jen wrote:
> I'm new to cable internet access and am researching Modems. From these
> discussions, the Motorola SURFboard 5100 modem seems pretty hot, and
> Linksys seems to be good for its routers. I'm trying to keep my total
> footprint very small (cute little Shuttle XPC), and wondered if there
> even was such a thing as an internal cable modem, just as there is for
> dial-up access.
>
> Also, I need firewall hardware, not just the firewall software. Do I
> need to buy a modem and router (only one PC needs access at a time) and
> a firewall all separately, or are any of these manufactured in a
> combined product?
>
>
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