Well, thanks for that. I didn't want to come right out and accuse the OP of trying to steal Internet service. Then I went back and read:
I am totally new in electronics, could someone please enlighten me? thanks.
So here is some enlightenment: Every Ethernet connection requires a MAC address. This is hard-coded into the cable modem and into every device that communicates via Ethernet. Ethernet is a CDMA (Collision Detection Multiple Access) network hardware communications protocol. It is not the Internet.
Most cable TV companies use a broadband coaxial cable (or fiber optics cable) with hundreds of radio frequency (RF) channels that they assign to particular TV channels, not necessarily on the same frequency as the over-the-air broadcast frequency. Some channels are left over, and these can be used for Ethernet digital communications via a cable modem. The output of the cable modem is Ethernet, but the input could be anything, including digital signals instead of RF signals. My home system cable modem "bonds" two adjacent RF cable "channels" to create a 20 megabit per second Ethernet download stream and a 2 megabit per second upload stream. If I want to upgrade to more bandwidth, my modem is capable of "bonding" several more cable "channels" to obtain it. And if I want to pay really big bux, the cable company will provide a symmetrical Internet connection. The key here is "pay" because they don't offer their services for free.
In addition to the hardware MAC address used to identify Ethernet nodes on an Ethernet network, everything that communicates via the Internet also has an Internet Protocol or IP address that points to the Internet node that is exchanging data via the Internet or World Wide Web. IP addresses are currently 32 bits assigned by international agencies (for a yearly fee) in blocks. See ICANN
for more details.
An Internet Service Provider (ISP) purchases a block of IP addresses and re-assigns them either statically or dynamically to their customers. These IP addresses are binary numbers, mostly unrecognizable to ordinary human beings, that are translated by a DNS (Domain Name Server) into URLs or Uniform Resource Locators. Each ISP hosts a domain name server (DNS) that recognizes a particular IP address and communications protocol and translates that to a character string (the URL) that is (more or less) understandable by a human being. The DNS communicates with other DNS to keep their translations tables up to date. For example, https://www.electronicspoint.com
is the URL you send messages to and receive messages from when you use this Forum. Think of that as the "front door" to Electronics Point. It is, for reasons I won't go into, likely a static IP address but it still uses a DNS, provided by the ISP serving Electronics Point, so you don't need to know what the "real" IP address is. Appended to the URL is the complete path name to whatever file is being transferred via the Internet or World Wide Web.
So, "getting on the Internet" is a bit more complicated than hacking a TV box that had a cable connection. I have a dynamic IP address that I use to connect to the Internet. It is assigned to me, as needed, by my ISP who happens to be Time Warner. I also own two other URLs, http://www.hebe.net
that are assigned to the same server by another ISP not associated with Time Warner. When either URL is typed into the address field of an Internet browser, both URLs are translated by DNS to the same IP address.
If you want to learn more about the Internet here is a link to a good place to start
. It has many other links to other resources for a more complete explanation. It is not necessary to understand electronics to understand the Internet.