645051
22
Zoom out
Zoom in
Previous page
1/72
Next page
Chapter 2: Networking
20 Chapter 2
Example: The Wireless Cable Gateway offers a number of built-in web pages which you can
use to confi gure its networking side; when you communicate with the networking side, your
communication is following this path.
Each packet on the Internet addressed to a PC in your home travels from the Internet down-
stream on the cable company’s system to the WAN side of your Wireless Cable Gateway. There it
enters the Cable Modem section, which inspects the packet, and, based on the results, proceeds
to either forward or block the packet from proceeding on to the Networking section. Similarly,
the Networking section then decides whether to forward or block the packet from proceeding on
to your PC. Communication from your home device to an Internet device works similarly, but in
reverse, with the packet traveling upstream on the cable system.
Cable Modem (CM) Section
The cable modem (or CM) section of your gateway uses DOCSIS Standard cable modem technol-
ogy. DOCSIS specifi es that TCP/IP over Ethernet style data communication be used between the
WAN interface of your cable modem and your cable company.
A DOCSIS modem, when connected to a Cable System equipped to support such modems,
performs a fully automated initialization process that requires no user intervention. Part of this
initialization confi gures the cable modem with a CM IP (Cable Modem Internet Protocol) address,
as shown in Figure 3, so the cable company can communicate directly with the CM itself.
Networking Section
The Networking section of your gateway also uses TCP/IP (Transmission Control Protocol/ Internet
Protocol) for the PCs you connected on the LAN side. TCP/IP is a networking protocol that pro-
vides communication across interconnected networks, between computers with diverse hardware
architectures and various operating systems.
TCP/IP requires that each communicating device be confi gured with one or more TCP/IP stacks,
as illustrated by Figure 4. On a PC, you often use software that came with the PC or its network
interface (if you purchased a network interface card separately) to perform this confi guration. To
communicate with the Internet, the stack must also be assigned an IP (Internet Protocol) address.
192.168.100.1 is an example of an IP address. A TCP/IP stack can be confi gured to get this IP
DCW725 book file.indb 20 DCW725 book file.indb 20 10/6/04 11:17:22 AM10/6/04 11:17:22 AM
22


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Thomson DCW725 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Thomson DCW725 in the language / languages: English as an attachment in your email.

The manual is 1,47 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info