ZyXEL Communications P-870HW-51A V2, User Manual

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Chapter 8 Network Address Translation (NAT)
P-870HW-51a v2 User’s Guide
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8.3.1 The Port Forwarding Edit Screen
This screen lets you create or edit a port forwarding rule. Select User Define in the Service
Name field or click the rule’s edit icon in the Port Forwarding screen to open the following
screen.
Protocol This is the IP protocol.
Internal Port
Start Enter the port number to which you want the ZyXEL Device to translate the
incoming port.
To forward only one port, enter the port number again in the
Internal Port End
field.
For a range of ports, enter the first number of the range to which you want the
incoming ports translated.
Internal Port End Enter the last port of the translated port range.
Add Click this button to add a rule to the table below.
No. This is the rule index number (read-only).
Active This field indicates whether the rule is active or not.
Clear the check box to disable the rule. Select the check box to enable it.
Server Name This field displays the name of the service used by the packets for this virtual
server.
WAN Interface This field shows the WAN interface through which the service is forwarded.
External Port
Start This is the first external port number that identifies a service.
External Port
End This is the last external port number that identifies a service.
Internal Port
Start This is the first internal port number that identifies a service.
Internal Port End This is the last internal port number that identifies a service.
Server IP
Address This field displays the destination IP address for the packet.
Modify Click the edit icon to go to the screen where you can edit the port forwarding rule.
Click the remove icon to delete an existing port forwarding rule. Note that
subsequent rules move up by one when you take this action.
Apply Click Apply to save your changes back to the ZyXEL Device.
Cancel Click Cancel to return to the previous configuration.
Table 29 NAT Port Forwarding (continued)
LABEL DESCRIPTION