bbrkdub
join:2001-10-03
Houston, TX | Very Slick...
Hmmm, maybe I should get Time Warner RoadRunner service? I'm about to pick a broadband connection for my new location. TW would love me after I've implemented this  |
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Network Guy
join:2000-08-25
New York
 ·PHONE POWER
·Broadvox Direct
 ·Verizon Online DSL
| Nothing new
Similar techniques have come about and are usually highly sought after by those who want to get the most out of their cable modem service. It may work, just not for long before you are shut down. Makes for fun reading, and maybe an interesting trial and error project to undertake.
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Posting sig removed by system administrator. Sig cannot exceed 30GB in size. |
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Darkflight
3G Stitch626
join:2001-03-03
Rowland Heights, CA | reply to bbrkdub
Re: Very Slick...
Imagine everyone who misses their old speeds were able to get it back using this....
Retro meets bandwidth again...
Hmm, I like that idea...
ATT/Comcast would really enjoy that...
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Darkflight |
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ropeguru
Premium
join:2001-01-25
Bridgeport, WV
clubs:
·VOIPo
| Shows where blame should be....
Forget the fact that he was able to hack his modem just to get "blazing" speeds higher than the caps. The point here is the fact that AT&T keeps saying that there aren't any problem with their network and it is the "users" fault. This just proves that AT&T's, and other providers as well, have networks that can handle the loads but they are no willing to put the effort into them to give customers what they want. |
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Bobcat
Premium
join:2001-02-04
Bedminster, NJ
·Verizon Online DSL
|  Looks like a good way to get your service canceled
And possibly even charged with Theft of Service. It seems to me that the cable company can easily tell that you changed your caps:
Terayon DOCSIS Cable Modem: HW 6.1; SW 1.7.3
Downstream channel ID = 5
Downstream channel frequency = 645000000 Hz
Downstream received signal power = -9.8 dBmV
Upstream channel ID = 2
Upstream channel frequency = 22992000 Hz
QoS max upstream bandwidth = 1000000 bps
QoS max downstream bandwidth = 10000000 bps
SigQu: Signal to Noise Ratio = 30.8 dB
Cable modem status = Operational
Upstream transmit signal power = 34.0 dBmV
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Without software, life itself would be impossible.
Optimum Online; $29.95 per month; average speed 7500/925 kbps |
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Daishi7
Premium
join:2002-02-24
clubs: 
| Not AT&T's problem..
I'd say it's more of a problem with the firmware on the modems or the DOCSIS specification itself. The modem should not keep a cached entry for the TFTP server after cold booting it. It also should not be accepting the config file from the LAN interface. this is a problem.
[text was edited by author 2002-03-14 11:13:33] |
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RayW
Premium
join:2001-09-01
Layton, UT
clubs:
·XMission
| And then you have Motorola
quote:
According to 3Com spokesperson Kim Sullivan, the big network equipment maker discontinued its consumer cable modem business last summer.
"We currently do not have a product that is affected by the threat" described by Hallacy, she said.
Remember back in the 60's when a person invented the 'blue box'? He told the feds about it, they asked AT&T. AT&T said "impossible". Organized crime bought it up and the story went down hill from there.
If man makes, man can break.
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I am not lost, I find myself every time. |
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NOVA_Guy
Obama- Commander in Thief
Premium
join:2002-03-05
 ·Comcast
·VOIPo
| reply to Bobcat
Re: Looks like a good way to get your service canceled
I could see having the cable company cancel your service, due to violation of their AUP. I would imagine that most have a clause similar to the following:
The Internet is known as a "shared resource", and Road Runner accounts operate accordingly using these resources. Excessive use or abuse of these shared network resources by one customer may have a negative impact on all other customers. Misuse of network resources in a manner, which impairs network performance, is prohibited by this policy and may result in termination of your account. This includes, but is not limited to:
Running any web, FTP, HTTP, chat, nntp, mail, DHCP, game, Gateway, proxy or other server from home, regardless of content or purpose.
Consistently using an excessive amount of bandwidth, as determined by Cox Road Runner personnel.
Circumventing their speed caps would probably constitute "misuse of network resources" in some manner.
BTW, the above AUP comes from Cox Cable Road Runner's pathetic service in the Northern Virginia area.
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"Objects in the rear view mirror may appear closer than they are." - Meat Loaf, Bat out of Hell II |
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SterlingJ85
Obama 2008
join:2000-11-19
Millville, NJ
·PHONE POWER
| reply to RayW
Re: And then you have Motorola
I think that was the fastest implementation a telco ever had... They had new circuit switched equipment installed in less than 6 months in most areas...
Wish that DSL would be implemented just as fast. 
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Justinhttp://buggyboyca.dynamic-site.net |
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Brendan
Warr Guitar is here
join:2000-07-14
Littleton, CO |  Not just DSL, DSL without interleave. That's why I'm going back to IDSL.
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"Too many Underlings. Spawn more Overlords."
*Pleased In Colorado* |
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Ruffian949
join:2000-12-08
Noblesville, IN
| Actually
I believe that if the DOCSIS spec is followed that this would not be possible. Since I don't know exactly how they (cable co)have their equipment configured, I can only assume that they aren't configured correctly and that it is not a problem with the DOCSIS spec.
Here is a quote from C. Ciocirlan (docsis program creator) for a little more backround (not to be confused as the DOCSIS spec creator).
"Moreover, even if you do manage to send it a file, you will probably won't be able to get the modem on-line. This is because the modem configuration file contains a HMAC-MD5 hash which is performed using a secret key that only the operator knows. When your modem tries to get online, this hash (known as CMTS MIC) is sent to the CMTS together with some important data and the CMTS re-calculates it. If you don't know the key - which you probably don't - you can't get the modem to register with the network." |
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gomer1701ems
join:2001-08-23
Minneapolis, MN | reply to RayW
Re: And then you have Motorola
said by RayW:
Remember back in the 60's when a person invented the 'blue box'?
I'm sorry, but what is a "blue box?"
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Sprint saved me from AT&T Broadband...... |
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SterlingJ85
Obama 2008
join:2000-11-19
Millville, NJ
·PHONE POWER
| It was a box that made dial tones when most things were still rotary. They discovered that by making certain tones (mimicing the phone companies DTMF equipment) with a "captain crunch" whistle... The telephone switch would route you to a long distance circuit that would allow you to dial long distance 100% free of charge for as long as you wanted. (The guy who found this was dubbed "Captain Crunch" because of his whistle.) After AT&T realized that it was actually possible to do this, they pulled the machanical dialers out and put in electronic dialers. |
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RARPSL
join:1999-12-08
Suffern, NY
| Another Reason it may not work
I have a Moto SB4100 (I used to have a SB3100) and from the way it operates, I think I've found a Gotcha in the way the Hack is done. Ignoring the HASH Handshake issue (which is a show stopper itself), I think the hack will only work until you reboot the modem with the coax connected. If you hack, connect the coax, and run it may work. Rebooting the Modem with the coax connected runs the modem though a sequence that includes a redownload of the official parms from the ISP Headend Routers. You can see this if you view the Modem's Log File. |
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72276539
Premium
join:2001-01-19
Atlanta, GA
| OK Im confused
How is it going to help to boost your cable modem if you can't get close to your max speeds to begin with? Sluggishnesh in the network needs to be fixed by AT&T. That's like having a gas tank at 20 gallons, everytime it hits 20 gallons it starts leaking... doesn't matter how much fuel you dump in it or how fast you dump it, it will still leak at 20 gallons. Another dumbass datageek Im afraid.
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»www.geocities.com/anubisracing |
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biggbrother
Premium
join:2001-11-07
Providence, RI | Another Reason to Get DSL Instead
This is just another reason why Cable broadband will never be as secure or stable as DSL. I'd rather pay the $8-$10 more per month for DSL and have a secure, consistent, & reliable high-speed Internet connection. |
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Nightwchtr
join:2001-09-10
Falls Church, VA
| DSL is not secure by any means, it still has security issues most dont know about yet. While DSL is consistent at best it is not as a reliable as cable by any means especially in places where equipment or phone lines are old. In Newer complexes where equipment or phone lines are newer ya it is a lot more reliable there. One thing going for DSL is Latency is not usually an issue only cause they have the better ratio than Cable being (4to1 rather than 13to1). While that $8-$10 more per month is probably a better deal for consumers I wouldn't try to run a business off that cause if it does goes down you can be down for days due to the fact that ADSL is superceded by S/I/DSL lines. But overall I do think DSL is better for business and cable is better for consumers but just my opinion. (Plus I work with DSL everyday) |
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Theo2002
join:2002-02-28
Clermont, FL | where is the juice
Hmm. Any pointers to the actual info on how to tweak your modem?  |
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alanhdsl
Premium
join:1999-10-09
Phoenix, AZ
·Qwest.net
|  I'm confused
So what exactly is the change to the modem config file doing? I have a few theories, but I don't know which it is.•Removes the speed cap. This is the simplest explanation, but doesn't explain why it works when the system is sluggish. If the network is congested, you won't be getting near the capped speed anyway. Changing the speed limit from 45mph to 75mph doesn't help if you're stuck in rush hour traffic.
•Boosts the priority of the modem's data. This seems to describe what happens better. However, the article seems to imply that AT&T's network is badly managed and if they did this speeds would be great. But if everybody boosted their priority, no one would gain an advantage, and the only "mismanagement" is having an underpowered network.
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wilbywilson
join:2001-02-24
Arlington, VA
| If people start uncapping their modems, this would be easy to track. I'm sure that RR and other cable providers are monitoring bandwidth and running MRTG to see which nodes are eating the juice. (It's just some logs, and MRTG takes the logs and converts it to bandwidth graphs. If you're in 5th grade you can read a graph. It's not rocket science)
Also, you are not limited *just* by your cable modem's DOCSIS config. One small addition to the RR router config can lower/raise/adjust the allocated bandwidth to a node. It doesn't matter *what* you do to your cable modem in that circumstance. You can't attain bandwidth that isn't allocated to you.
Likewise, the cable companies are not solely relying on the cable modems to cap bandwidth. Most of the provisioning and allocation is done from the NOC, where they only allocate a certain amount to each node. Once it gets to the node, then maybe someone local to that area whose modem is uncapped would get more bandwidth than other people on that particular node. But you can never get more bandwidth than they spit out to your node.
Those are the facts as I understand them.
[text was edited by author 2002-03-14 17:20:08] |
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