ZyXEL Communications VMG1312-T10C, User Manual

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Chapter 10 Network Address Translation (NAT)
VMG1312-T10C User’s Guide
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10.4 The DMZ Screen
Click Network Setting > NAT > DMZ to open the DMZ screen. Use this screen to specify the IP
address of a default server to receive packets from ports not specified in the Port Forwarding
screen.
Figure 91
Network Setting > NAT > DMZ
External Start Port Configure this for a user-defined entry. Enter the original destination port for the
packets.
To forward only one port, enter the port number again in the External End Port field.
To forward a series of ports, enter the start port number here and the end port number
in the
External End Port field.
External End Port Configure this for a user-defined entry. Enter the last port of the original destination
port range.
To forward only one port, enter the port number in the External Start Port field above
and then enter it again in this field.
To forward a series of ports, enter the last port number in a series that begins with the
port number in the
External Start Port field above.
Server IP Address Enter the inside IP address of the virtual server here.
Protocol Select the protocol supported by this virtual server. Choices are TCP , UDP , or TCP/
UDP .
Open Start Port Configure this for a user-defined entry. This shows the port number to which you want
the Device to translate the incoming port. For a range of ports, enter the first number
of the range to which you want the incoming ports translated.
Open End Port Configure this for a user-defined entry. This shows the last port of the translated port
range.
Apply Click this to save your changes.
Cancel Click this to exit this screen without saving.
Table 49
Port Forwarding: Add/Edit (continued)
LABEL DESCRIPTION