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Chapter 2: Networking
28
IP Stack 4 - for use by you to remotely (i.e. from somewhere on the WAN side, such as at your
remote 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 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 modi
es the packets going to and from your
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Chapter 2: Networking
Illustrations contained in this document are for representation only.
29
USB-connected PC to make them look Ethernet-style when passed between you and your cable
company. To do this, the gateway must effectively “loan” an Ethernet-style address for use in all
these packets. For this purpose, the gateway uses a MAC address of MAC label + 5 (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:B1:96.
MAC and IP Addresses Summary
This table summarizes all the MAC and IP addresses that may be associated with the TCP/IP
communication stacks and USB handling in your Wireless Cable Gateway. The ones actually used
depend upon your gateway Operating Mode, as explained above. At minimum, your cable
company will need to know the MAC address associated with IP Stack 1, which is the MAC
address shown on the modem label.
Stack Name
Purpose - Mode
MAC Address
IP Address
IP Stack 1
IP Stack 2
CM WAN access - all Modes
local management - CM Mode
per label on CM
assigned by cable company during
initialization
IP Stack 3
IP Stack 4
only
CM label + 1
fixed at 192.168.100.1
IP Stack 5
---
CableHome remote management -
CH Mode only
end-user remote management,
LAN WAN access - RG Mode only
CM label + 2
CM label + 3
assigned by cable company
assigned by cable company
WAN data access -
CH Mode only
CM label + 4
fixed at 192.168.0.1
local management -
RG, CH Modes only
LAN gateway
CM label + 5
MAC and IP Addresses
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Chapter 3: Advanced Configuration
30
Chapter 3: Advanced Configuration
Advanced User Configuration
The Wireless Cable Gateway offers local management capability through a built in HTTP server
and a number of diagnostic and configuration web pages. These pages are available from
http://192.168.0.1 in RG and CH modes, and http://192.168.100.1 in CM Mode. Not all pages
are available in some modes.
Some information on two of the following web pages MUST BE configured, as explained in
Mandatory User Configuration.
In addition, more configuration and diagnostics are possible through the following additional
web pages, most of which are aimed at controlling the advanced networking functions of the
gateway.
To navigate between pages, use the hyperlinks on the top of the page, and the side bar on the
left side of the page. For easy navigation, the pages are organized in groups, with group names
at the top of the pages. Individual page names within each group are provided in the sidebar. To
navigate to a page, click the group hyperlink at the top, then the page hyperlink on the sidebar.
Your cable company may not support the reporting of some items of information listed on your
gateway’s internal web pages. In such cases, the information field appears blank. This is normal.
In the CM Mode, the simplest configuration mode of the gateway, or in the CH Mode, where you
have subscribed to an outside service (your cable company or another party) to remotely manage
your home network configuration, you will see only the Status and Wireless web page hyperlinks
in the sidebar, indicating only these page groups are available.
In the RG Mode, the mode where you manage your home network configuration, you will see web
page hyperlinks to all five page groups: Status, Basic, Advanced, Firewall, and Wireless.
The following section explains all of the available pages for all of the modes.
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Chapter 3: Advanced Configuration
Illustrations contained in this document are for representation only.
31
Note: Your gateway complies with EURO-DOCSIS standards regarding software upgrades.
EURO-DOCSIS requires that any software upgrade to a device that is connected to a cable system,
like your gateway, must be "pushed" to the gateway by the cable operator. Also, the features of
the gateway, and the embedded web pages that control those features, can vary by software
version. Therefore, you may find that your gateway's web pages and features vary slightly from
those shown here. This is normal, and is the result of a software upgrade your cable operator
has made to your gateway.
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Chapter 3: Advanced Configuration
32
Status Web Page Group
Software Web Page
The Information section of this page provides hardware and software information about your
gateway that may be useful to your cable company. You can view your operating software version
but not change it. This is because your gateway adheres to the EURO-DOCSIS Cable Modem
standard, which requires that your cable company perform any software upgrade of the gateway
from the gateway WAN side.
The Status section of this page shows how long your gateway has operated since last being
powered up, and some key information the Cable Modem section received during the
initialization process with your cable company. If Network Access shows “Allowed,” then your
cable company has configured your gateway to have Internet connectivity. If Network Access
shows otherwise, you may not have Internet access, and should contact your cable company to
resolve this.
Fig. 17

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