ZyXEL Communications 5 Series Manual Do Utilizador
Chapter 22 Network Address Translation (NAT)
ZyWALL 5/35/70 Series User’s Guide
446
2 Port 7070 is a “trigger” port and causes the ZyWALL to record Jane’s computer IP
address. The ZyWALL associates Jane's computer IP address with the "incoming" port
range of 6970-7170.
range of 6970-7170.
3 The Real Audio server responds using a port number ranging between 6970-7170.
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
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).
two hours with TCP/IP (Transfer Control Protocol/Internet Protocol).
22.5.1 Configuring Port Triggering
Click ADVANCED > NAT > Port Triggering to open the following screen. Use this screen
to change your ZyWALL’s trigger port settings.
to change your ZyWALL’s trigger port settings.
Figure 258 ADVANCED > NAT > Port Triggering
The following table describes the labels in this screen.
Table 134 ADVANCED > NAT > Port Triggering
LABEL
DESCRIPTION
WAN
Interface
Interface
Select the WAN interface for which you want to view or configure address mapping
rules.
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.
are permitted - including spaces.