Usb Mac Address - THOMSON TWG850-4 User Manual

CH (CableHome) Mode provides all the functionality of RG mode and adds the ability of the cable company to
control the home networking configuration of your Wireless Cable Gateway for you, so you don't need to
perform the configuration yourself. In this mode, four IP stacks are active:
IP Stack 1 - for use by the cable company to communicate with the Cable Modem section only. This stack
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receives its IP address from the cable company during CM initialization. It uses the MAC address printed
on the label attached to the Wireless Cable Gateway.
IP Stack 3 - for use by your cable company to communicate with the Networking section to help you
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configure and manage your home networking. This stack requires an IP address assigned by the cable
company from their pool of available addresses. Your cable company may have you or your installer
manually enter assigned addresses into your gateway, or use a DHCP Server to communicate them, or use a
method that involves you entering host names. This stack uses a MAC address of MAC label + 2 (the MAC
label is found on the bottom of the unit). E.g., if the MAC address is 00:90:64:12:B1:91, this MAC address
would be 00:90:64:12: B1:93.
IP Stack 4 - for use by you to remotely (i.e. from somewhere on the WAN side, such as at your remote
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workplace) communicate with the Cable Modem and Networking sections, to remotely access the internal
web page diagnostics and configuration. This stack is also used by your cable company to deliver packets
between the Internet and the Wireless Cable Gateway's Networking section so they can be routed to/from
your PCs. This stack requires an IP address assigned by the cable company from their pool of available
addresses. Your cable company may have you or your installer manually enter these assigned addresses into
your gateway, or use a DHCP Server to communicate them, or use a method that involves you entering host
names. This stack uses a MAC address of MAC label + 3 (the MAC label is found on the bottom of the
unit). E.g., if the MAC address is 00:90:64:12:B1:91, this MAC address would be 00:90: 64:12:B1:94.
IP Stack 5 - for use by you to locally (i.e. from somewhere on the LAN side in your home) communicate
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with the Cable Modem and Networking sections, to access the internal web page diagnostics and
configuration. This stack is also used by the Wireless Cable Gateway Networking section to route packets
between the Wireless Cable Gateway's Networking section and your PCs. This stack uses a fixed IP address:
192.168.0.1. It uses a MAC address of MAC label+ 4 (the MAC label is found on the bottom of the unit).
E.g., if the MAC address is 00:90:64:12:B1:91, this MAC address would be 00:90:64:12:B1:95.
With CH Mode, your cable company must provide one IP address for the CM section, plus two for the
Networking section, from their pool of available addresses. Each PC you connect gets an IP address from a
DHCP Server that is part of the Networking section of the gateway.

USB MAC Address

USB allows a single PC to be connected directly via your Wireless Cable Gateway USB port. Other
PCs can, of course, be connected to your other networking interfaces: wireless, HPNA, and Ethernet.
If you have a PC connected by USB, the following information is helpful.
The PCs you have connected by 802.11b/g Wireless, and Ethernet technologies associated with your
gateway all send and receive packets that contain the Ethernet-style MAC address associated with that
network interface. USB technology, however, uses a different addressing approach. In this situation,
your gateway modifies the packets going to and from your USB-connected PC to make them look
Ethernet-style when passed between you and your cable company. To do this, the gateway must
Illustrations contained in this document are for representation only.
Chapter 3: Networking
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