Cable modem info

Kuronekosama · Post by **Kuronekosama** » Mon Mar 14, 2005 5:39 pm

Well I made a thread about this about a year and a half ago, and I figured I'd make the offer again. Essentially I work on an internal helpdesk that supports cable modem tech support agents. When an agent can't figure out a problem they ask us for help. Anyhow, if anyone here has any questions in relation to their cable modem, ask away!

TopCat · Post by **TopCat** » Mon Mar 14, 2005 8:26 pm

How do I uncap my 3Com Office Connect?

Hah, I really have no real questions, so if you can answer that you win the prize of knowing way too much.

Kuronekosama · Post by **Kuronekosama** » Mon Mar 14, 2005 11:10 pm

http://www.securityfocus.com/archive/82/261454

Also there are programs by the name of "OneStep" and "FUCKUPC" that are designed to do uncapping. However, your provider will typically know almost immediately that the modem has been uncapped. This will result in your service being shut off, and very likely termination of all cable services. Also possible is legal action, so, it'd be a stupid stupid thing to do. Speeds keep getting increased anyhow, and in time they'll keep going higher and higher.

TopCat · Post by **TopCat** » Tue Mar 15, 2005 1:37 am

[quote="Kuronekosama";p="465344"]http://www.securityfocus.com/archive/82/261454

Also there are programs by the name of "OneStep" and "FUCKUPC" that are designed to do uncapping. However, your provider will typically know almost immediately that the modem has been uncapped. This will result in your service being shut off, and very likely termination of all cable services. Also possible is legal action, so, it'd be a stupid stupid thing to do. Speeds keep getting increased anyhow, and in time they'll keep going higher and higher.[/quote]

Have you met my ISP? I doubt it. I'm not mentioning their name (at least in public) right now, because then they'd sue me for slander (they bought ISPNAMEsucks.com and ISPNAMEblows.com and .net.org for both of those, because they knew they sucked and took pro-active action) for speakin da toof.

Anyway: It was a joke, and I don't even know if those work for my modem. I would get a surfboard (the one my isp pushes without knowing that's the easiest to hack) if I wanted to modify it.

I have read a story about someone who was having cablemodem problems over and over and his ISP kept failing to figure out what the problem was. He grabbed the DOCSIS file thing and read that they had some syntax errors or something in the file, he fixed it, and his modem began to work fine. I don't remember what ISP said person said he had, or how I could find this via the power of Google, but it was interesting anyway.

Kuronekosama · Post by **Kuronekosama** » Tue Mar 15, 2005 3:54 am

I'd like a link of that if you could find that. I know my company does a LOT of testing before rolling out a bootfile for modems to prevent stuff like that. The bootfiles aren't tailored to each individual, but are for all of the modems of a given type for a given level of service. A hash is done of the original bootfile by the server so just simply changing the bootfile is just going to net you a disconnection. And once DOCSIS 1.1 rolls out, I believe capping is going to be done server side so even working around this will be a moot point soon.

TopCat · Post by **TopCat** » Tue Mar 15, 2005 4:29 am

Own your own surfboard:
http://www.theregister.co.uk/2004/02/05 ... s_conquer/

But, that's also related to onestep sorta.

I can't find this thing because I read it about 2 years ago maybe, googling is not helping at all. Sorry. I don't remember whos isp it was, but what I remember is he didn't uncap himself, just fixed it, and I don't know if his ISP prosecuted him for it or not.

Also: Is there any way to find out if your cablemodem connection is encrypted?

But while encryption would indeed thwart any eavesdropping attempt, in the most commonly-deployed version of the DOCSIS standard, version 1.0, the encryption option is just that -- an option, and one that's turned off by default. "The security has to be there" in the modem, says Oscar Marcia, chief security architect at for CableLabs, the industry group responsible for DOCSIS. "But the [service provider] can decide when to turn it on."

Just because i'm a good guy who isn't planning on snooping on everybody, how do I know that noone else on my network is? That's a little upsetting.

Post by **Martin Blank** » Tue Mar 15, 2005 4:40 am

Wasn't one uncapper arrested by federal agents at gunpoint?

Kuronekosama · Post by **Kuronekosama** » Tue Mar 15, 2005 3:52 pm

I believe that was with an ISP in Ohio. Tried to pin a $200000 fine on the uncapper but I don't know what really came of it.

I'm not sure of a ready way to check for BPI (encryption) modem side. If you look in your cable modem's logs it may indicate it's been initialized. To find out how to access info for your cable modem, go to http://www.neotechcc.org and check out the cable modem section.

Infin8Cyn · Post by **Infin8Cyn** » Tue Mar 15, 2005 7:08 pm

[quote="Martin Blank";p="465519"]Wasn't one uncapper arrested by federal agents at gunpoint?[/quote]
There have been some serious SERIOUS cases against upcappers. My friend got into it for a while got into ridiculous amounts of trouble with his provider and had to fcuk with tftp about once every 15mins just to keep it operational.

To me it's not worth the risk.

Back to Kuronekosama:

I know the motorola surfboard has a status page (accessible at http://192.168.100.1), is there a list anywhere of such pages for other popular cable modems?

Edit: Ninja'd. I think you linked to it in the bottom of your ^^^ Post. God I'm retarded at times.

Kuronekosama · Post by **Kuronekosama** » Tue Mar 15, 2005 7:57 pm

Hehe, 192.168.100.1 is common across most modems actually. That site I link has lots of good info about, well, lots of stuff

Infin8Cyn · Post by **Infin8Cyn** » Tue Mar 15, 2005 9:16 pm

Yeah, I was looking at Terayon for my friend, appears they DON'T have an interface. Gah.

Kuronekosama · Post by **Kuronekosama** » Tue Mar 15, 2005 9:18 pm

I thought they did... I might have a terayon in the lab, I'll check it out.

Posted Tue Mar 15, 2005 9:36 pm:

Yep, terayons do have an info page, accessed by 192.168.100.1 - However, it's a pretty gimp one. It will only show you signal info if the modem hasn't locked. Otherwise it has just some basic info.

Zaph · Post by **Zaph** » Tue Mar 15, 2005 11:12 pm

[quote="TopCat";p="465424"][quote="Kuronekosama";p="465344"]
/snip
Have you met my ISP? I doubt it. I'm not mentioning their name (at least in public) right now, because then they'd sue me for slander (they bought ISPNAMEsucks.com and ISPNAMEblows.com and .net.org for both of those, because they knew they sucked and took pro-active action) for speakin da toof.
/snip
[/quote]
[/quote]
I used to work for them before they closed all of their US support centers and outsourced all of the tech support.

-Zaph

Kuronekosama · Post by **Kuronekosama** » Wed Mar 16, 2005 3:36 pm

I believe TopCat is talking about Cox, and they haven't outsourced all of their centers.

A bit more on hacking the modem - I know my ISP at least does an MD5 hash of the bootfile, which is not readily compromised, and if you have the equipment to crack it, you wouldn't be wasting time with a cable modem. So, if you change the bootfile, the hash changes, and the modem gets deactivated.

Infin8Cyn · Post by **Infin8Cyn** » Wed Mar 16, 2005 4:43 pm

[quote="Kuronekosama";p="465845"]I thought they did... I might have a terayon in the lab, I'll check it out.

Posted Tue Mar 15, 2005 9:36 pm:

Yep, terayons do have an info page, accessed by 192.168.100.1 - However, it's a pretty gimp one. It will only show you signal info if the modem hasn't locked. Otherwise it has just some basic info.[/quote]
His sure doesn't have that page....

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