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With which type of firewall is the Cable Gateway equipped?
The Cable Gateway
uses NAT and TCP/IP port inspections. It also has SPI (Stateful Packet
Inspection).
I am not able to access the Cable Gateway’s web configuration screen. What can
I do?
You may have to remove the proxy settings on your Internet browser,
e.g., Netscape Navigator or Internet Explorer. Or remove the dial-up settings
on your browser. Check with your browser documentation.
What is DMZ?
Demilitarized Zone (DMZ) allows one IP address (computer) to
be exposed to the Internet. Some applications require multiple TCP/IP ports
to be open. It is recommended that you set your computer with a static IP if
you want to use DMZ.
If DMZ is used, does the exposed user share the public IP with the Cable Gateway?
No.
Does the Cable Gateway pass PPTP packets or actively route PPTP sessions?
The
Cable Gateway allows PPTP packets to pass through.
Is the Cable Gateway cross-platform compatible?
Any platform that supports
Ethernet and TCP/IP is compatible with the Cable Gateway.
How many ports can be simultaneously forwarded?
Theoretically, the Cable
Gateway can establish 520 sessions at the same time, but you can only for-
ward 10 ranges of ports.
Does the Cable Gateway replace a modem? Is there a cable modem in the Cable
Gateway?
Yes. The Cable Gateway has an integrated cable modem, so this
product will replace your current cable modem.
How do I get mIRC to work with the Cable Gateway?
Set port forwarding to 113
for the computer on which you are using mIRC. If you are experiencing dif-
ficulty after setting the port forwarding, try changing the Direct Client-to-
Client (DCC) settings to a range from 1024 to 1030 on the DCC option and
Forwarding page of the Web-based Setup Utility.
If your questions are not addressed here, refer to the Comcast Home
Networking page online at
http://www.homenetworking.comcast.net
.
What is
Network Address Translation
and what is it used for?
Network Address
Translation (NAT) translates multiple IP addresses on the private LAN to one
public address that is sent out to the Internet. This adds a level of security
since the address of a PC connected to the private LAN is never transmitted
on the Internet. Furthermore, NAT allows the Cable Gateway to be used with
low cost Internet accounts, when only one TCP/IP address is provided by the
ISP. The user may have many private addresses behind this single address
provided by the ISP.
Does the Cable Gateway support ICQ send file?
Yes, with the following fix: click
ICQ menu -> preference -> connections tab->
, and check
I am behind a
firewall or proxy
. Then set the firewall time-out to
80
seconds in the firewall
setting. The Internet user can then send a file to a user behind the Cable
Gateway.
Can multiple gamers on the LAN get on one game server and play simultaneously
with just one public IP address?
It depends on which network game or what
kind of game server you are using. For example, Unreal Tournament supports
multi-login with one public IP.
How do I get
Half-Life: Team Fortress to work with the Cable Gateway?
The default
client port for Half-Life is 27005. The computers on your LAN need to have
“+clientport 2700x” added to the HL shortcut command line; the x would be
6, 7, 8, and on up. This lets multiple computers connect to the same server.
One problem:
Version 1.0.1.6 won’t let multiple computers with the same CD
key connect at the same time, even if on the same LAN (not a problem with
1.0.1.3). As far as hosting games, the HL server does not need to be in the
DMZ. Just forward port 27015 to the local IP address of the server computer.
The web page hangs; downloads are corrupt, or nothing but junk characters are
being displayed on the screen. What do I need to do?
Force your Ethernet
adapter to 10Mbps or half duplex mode, and turn off the “Auto-negotiate”
feature of your Ethernet adapter as a temporary measure. (Please look at the
Network Control Panel in your Ethernet adapter’s Advanced Properties tab.)
Make sure that your proxy setting is disabled in the browser. Check
http://www.homenetworking.comcast.net for more information.
If all else fails in the installation, what can I do?
Reset the Cable Gateway by
holding down the reset button for one second.
