Zyxel-communications Internet Security Appliance ZyWALL5UTM 4.0 Manual de usuario descargar pdf (Pagina 385)

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ZyWALL 5/35/70 Series User’s Guide

385 Chapter 22 Network Address Translation (NAT)

4 The ZyWALL forwards the traffic to Jane’s computer IP address.

5 Only Jane can connect to the Real Audio server until the connection is closed or times

out. The ZyWALL times out in three minutes with UDP (User Datagram Protocol) or two

hours with TCP/IP (Transfer Control Protocol/Internet Protocol).

To change your ZyWALL’s trigger port settings, click ADVANCED, NAT and the Port

Triggering tab. The screen appears as shown. Not all fields are available on all models.

Figure 187 Port Triggering

The following table describes the labels in this screen.

Table 131 Port Triggering

LABEL DESCRIPTION

WAN

Interface

Select the WAN port for which you want to view or configure address mapping rules.

# This is the rule index number (read-only).

Name Type a unique name (up to 15 characters) for identification purposes. All characters are

permitted - including spaces.

Incoming Incoming is a port (or a range of ports) that a server on the WAN uses when it sends out

a particular service. The ZyWALL forwards the traffic with this port (or range of ports) to

the client computer on the LAN that requested the service.

Start Port Type a port number or the starting port number in a range of port numbers.

End Port Type a port number or the ending port number in a range of port numbers.

1 2 ... 380 381 382 383 384 385 386 387 388 389 390 ... 802 803

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