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ZyWALL 2 Series User’s Guide
28-18 NAT
5. Only A 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).
28.5.2 Two Points To Remember About Trigger Ports
1. Trigger events only happen on data that is going coming from inside the ZyWALL and going to the
outside.
2. If an application needs a continuous data stream, that port (range) will be tied up so that another
computer on the LAN can’t trigger it.
Only one LAN computer can use a trigger port (range) at a time.
Enter 3 in menu 15 to display Menu 15.3 — Trigger Port Setup, shown next.
Figure 28-23 Menu 15.3: Trigger Port Setup
The following table describes the fields in this screen.
Menu 15.3 - Trigger Port Setup
Incoming Trigger
Rule Name Start Port End Port Start Port End Port
----------------------------------------------------------------------
1.
Real Audio 6970 7170 7070 7070
2. 0 0 0 0
3. 0 0 0 0
4. 0 0 0 0
5. 0 0 0 0
6. 0 0 0 0
7. 0 0 0 0
8. 0 0 0 0
9. 0 0 0 0
10. 0 0 0 0
11. 0 0 0 0
12. 0 0 0 0
Press ENTER to Confirm or ESC to Cancel: