Инструкция для ZYXEL ZyWALL 2 EE

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ZyWALL 2 Series User’s Guide

UPnP

18-5

Table 18-2 UPnP Ports

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.