ZyXEL p-334 Manual Do Utilizador

Prestige 334 User’s Guide

Chapter 25 Network Address Translation (NAT)

250

Figure 128 Example 3: Menu 15.2

25.5.4 Example 4: NAT Unfriendly Application Programs

Some applications do not support NAT Mapping using TCP or UDP port address translation.
In this case it is better to use Many-to-Many No Overload mapping as port numbers do not
change for Many-to-Many No Overload (and One-to-One) NAT mapping types. The
following figure illustrates this.

Menu 15.2 - NAT Server Setup

   Rule Start Port No. End Port No. IP Address
   ---------------------------------------------------
      1. Default     Default    0.0.0.0
      2. 80       80     192.168.1.21
      3. 25       25     192.168.1.20
      4. 0        0    0.0.0.0
      5. 0        0    0.0.0.0
      6. 0        0    0.0.0.0
      7. 0        0    0.0.0.0
      8. 0        0    0.0.0.0
      9. 0        0    0.0.0.0
     10. 0        0    0.0.0.0
     11. 0        0    0.0.0.0
     12. 0        0    0.0.0.0

Press ENTER to Confirm or ESC to Cancel:
HTTP:80 FTP:21 Telnet:23 SMTP:25 POP3:110 PPTP:1723