Setting Up Nat Port Forwarding; Default Server - ZyXEL Communications P-660HW-Tx v3 Series User Manual

Chapter 4 Tutorials

4.5 Setting Up NAT Port Forwarding

Thomas recently received an Xbox 360 as his birthday gift. His friends invited him
to play online games with them on Xbox LIVE. In order to communicate and play
with other gamers on Xbox LIVE, Thomas needs to configure the port settings on
his ZyXEL Device.
Xbox 360 requires the following ports to be available in order to operate Xbox
LIVE correctly:
TCP: 53, 80, 3074
UDP: 53, 88, 3074
Thomas may set up the port settings in two ways. He can either set the Xbox
360's IP address as the default server (see
configure the port settings for Xbox 360 (see

4.5.1 Default Server

It is much easier to set the Xbox 360's IP address as the default server if it is not
already assigned to another server. There is no need to enter any port number.
Note: Setting a device as the default server exposes the device to potential attacks.
Any port service trying to access the ZyXEL Device's WAN IP address will be
forwarded to the default server. It is recommended that you set up a firewall rule
to protect the device.
If you are not certain about the Xbox 360's IP address, you may check it in the
1
DHCP client table. Click Network > LAN > Client List to open the following
screen. Look for the IP address for Xbox 360.
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Section 4.5.1 on page
Section 4.5.2 on page
P-660HW-Tx v3 Series User's Guide
58), or he can
59).