Docsis 3 cable modem hack

That file, it turned out, included the administrative login and password in cleartext. First incorporated in , Comcast is one of the largest cable TV and cable broadband companies in the United States. Yes, it is possible to hack comcast modem however you would need to have knowledge of not only electrical engineering, coding and programming, but forensic pathology and reverse engineering as well. A cable modem is a hardware device that allows your computer to communicate with an Internet service provider over a landline connection.

It converts an analog signal to a digital signal for the purpose of granting access to broadband Internet. A cable modem works by connecting a coaxial cable and then a Cat 5 Ethernet cord from the modem to a computer or network router. Cable offers a significant speed increase in Internet performance when compared to a dial-up connection and is one of the fastest broadband solutions.

The process of uncapping a cable modem is typically technically involved, requiring the programming of a docsis configuration file with a special editor, putting up a tftp server, changing an ip address, and running a dhcp server to trick the cable modem into pulling the config file from a local host.

The Netgear CM works with the biggest cable providers and supports speeds of up to Mbps, which should be enough for the vast majority of Internet users out there.

Like our other best cable modem picks, the CM gets generally good reviews on Amazon, though the retailer seems to combine reviews of all of Netgear modems. That makes it hard to get a good read on what customers say about this specific model.

Positive reviews cite the easy installation and wide compatibility with many top ISPs. The negative reviews complain of reliability, something to keep in mind given the CM one-year warranty.

While most homes opt for internet plans that promise speeds of around to Mbps, some people prefer higher-speed service. Netgear CM is the best cable modem for those higher speeds. Not every home internet user needs to pay for a more expensive modem. If your service plan caps its speeds at Mbps, the TP-Link TC modem can serve you ably without denting your budget.

A while back, the Arris Surfboard SB was our pick for the best cable modem as it features the great compact design of other Arris modems as well as dependable performance. Another modem that works best in homes where internet service never tops download speeds of Mbps, the Linksys CM gets the job done without winning any beauty contests.

Because it determines how different a firm is from its competitors, brand value is an essential factor in positioning success. The value of the product : Think of the thing as the item you'll get as a result of your sensible investment. The product's durability : A product's strength and durability influence how long it will work and last. Customer feedback: Customers who have tried the product rate it and provide helpful input.

This will give you a clear idea of the actual experiments you'll conduct when utilizing the product. Specs : Regarding personal recommendations, the Internet, personal experience, or certification from a reputable and independent organization, the manufacturer's criteria are essential information sources for consumers to better understand the product they intend to purchase.

Customer Ratings : The product is graded objectively using number ratings. Accessing the internet requires both a router or modem. After receiving data from the internet provider, the modem converts that information into an accessible format for your devices. Next, your router will take the modem's data and turn it into format for you to read. Your ISP and the speed of your internet connection will determine which modem is best for you. What Modem Should I Buy? What Does A Modem Do?

The modem allows you to connect the internet directly to your home. The modem acts as the translator between your computer and the internet. It interprets and encodes all information that your internet provider sends to you. It is their connection that makes the difference between DSL modems and cable modems. DSL modems are connected to your telephone line. An cable modem connects to the cable TV setup box. Related Reviews. Best shipping label printer 12 Jun Best projector under 03 Apr We play with Cisco CMTSes here in Nassau; in the nine step diagram you presented, how do the steps you presented match up with the init states init d, i, o, t that the modem displays while registering on the network.

If you are past init rc , then you could have either an RF or IP issue. Keep in mind that ranging typically uses a lower order modulation, so just because you passed ranging okay does not mean that the RF plant can pass IP traffic okay at the higher order QAM modulation. As for those steeling service…that is a little more difficult. I have worked with third party companies that sit on top of the provisioning system which is very effective at stopping theft of service. This is a really good post.

Must admit that you are amongst the best bloggers I have read. Thanks for posting this informative article. Thanks for your input. And I completely agree with you. I believe the cable industry remains behind the game of skilled hackers. Otherwise feel free to remain anonymous. Your posts to this blog will be allowed as long as they remain on topic. Assuming the cloning process is close to perfect. Other than some obvious findings, how would you identify the clone from its parent?

You see duplicate MAC addresses. Ideally your provisioning system should catch this, but not everyone is using an up-to-date provisioning system or have them tied together across networks. Thanks for all of the good information. Previous Next. View Larger Image. Why do they do this? This is an open door once again for hackers. Automatic monitoring of your CMTS logs for this event will rapidly identify this hacker and enable you to give him the boot.

Mia Colabrese T August 1st, Related Posts. July 15th, 0 Comments. April 23rd, 0 Comments. April 2nd, 0 Comments. Great explanation. Are other classes of modems vulnerable, too?

Brady August 2, at pm - Reply. Richard H March 13, at am - Reply. Brady April 6, at pm - Reply. If you hear of any other way, I would be quite interested. Regards, -Brady Loading Mahmoud Al-Qudsi May 7, at am - Reply. Anonymous December 7, at am - Reply. Hey Brady! This article has helped me secure my network in many ways. Thanks for showing me where to look! Brady January 26, at am - Reply.