ZyXEL ZyWALL 5 User Guide - Page 528
UPnP Screens, ZyWALL 5/35/70 Series User's Guide, ADVANCED > UPnP > Ports continued
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Chapter 28 UPnP Screens Table 158 ADVANCED > UPnP > Ports (continued) LABEL DESCRIPTION # This is the index number of the UPnP-created NAT mapping rule entry. Remote Host This field displays the source IP address (on the WAN) of inbound IP packets. Since this is often a wildcard, the field may be blank. When the field is blank, the ZyWALL forwards all traffic sent to the External Port on the WAN interface to the Internal Client on the Internal Port. When this field displays an external IP address, the NAT rule has the ZyWALL forward inbound packets to the Internal Client from that IP address only. External Port This field displays the port number that the ZyWALL "listens" on (on the WAN port) for connection requests destined for the NAT rule's Internal Port and Internal Client. The ZyWALL forwards incoming packets (from the WAN) with this port number to the Internal Client on the Internal Port (on the LAN). If the field displays "0", the ZyWALL ignores the Internal Port value and forwards requests on all external port numbers (that are otherwise unmapped) to the Internal Client. Protocol This field displays the protocol of the NAT mapping rule (TCP or UDP). Internal Port This field displays the port number on the Internal Client to which the ZyWALL should forward incoming connection requests. Internal Client This field displays the DNS host name or IP address of a client on the LAN. Multiple NAT clients can use a single port simultaneously if the internal client field is set to 255.255.255.255 for UDP mappings. Enabled This field displays whether or not this UPnP-created NAT mapping rule is turned on. The UPnP-enabled device that connected to the ZyWALL and configured the UPnP-created NAT mapping rule on the ZyWALL determines whether or not the rule is enabled. Description This field displays a text explanation of the NAT mapping rule. Lease Duration This field displays a dynamic port-mapping rule's time to live (in seconds). It displays "0" if the port mapping is static. Apply Click Apply to save your changes back to the ZyWALL. Refresh Click Refresh update the screen's table. 528 ZyWALL 5/35/70 Series User's Guide