ZyXEL Communications 660HW Series - Manual (Page 121)

Prestige 660H/HW Series User’s Guide
Chapter 9 Network Address Translation (NAT) Screens 120
9.5 Selecting the NAT Mode
You must create a firewall rule in addition to setting up SUA/NAT, to allow traffic from the
WAN to be forwarded through the Prestige.
Click NAT to open the following screen.
Figure 51 NAT Mode
The following table describes the labels in this screen.
Table 30 NAT Mode
LABEL DESCRIPTION
None Select this radio button to disable NAT.
SUA Only Select this radio button if you have just one public WAN IP address for your Prestige.
The Prestige uses Address Mapping Set 1 in the NAT - Edit SUA/NAT Server Set
screen.
Edit Details Click this link to go to the NAT - Edit SUA/NAT Server Set screen.
Full Feature Select this radio button if you have multiple public WAN IP addresses for your Prestige.
Edit Details Click this link to go to the NAT - Address Mapping Rules screen.
Configure
ALG Settings
Select the Enable SIP ALG check box to allow VoIP calls to pass through NAT.
Apply Click Apply to save your configuration.
9.6 Configuring SUA Server
If you do not assign an IP address in Server Set 1 (default server) the Prestige discards all
packets received for ports that are not specified here or in the remote management setup.
Click NAT, select SUA Only and click Edit Details to open the following screen.
Refer to Table 29 on page 118 for port numbers commonly used for particular services.