Figure 31-14 Menu 15.2.1 Specifying An Inside Server - ZyXEL Communications Prestige 662HW Series User Manual

31.5.2 Example 2: Internet Access with an Inside Server
In this case, you do exactly as above (use the convenient pre-configured SUA Only set) and also go to
menu 15.2 to specify the Inside Server behind the NAT as shown in the next figure.
Menu 15.2.1 - NAT Server Setup (Used for SUA Only)
Rule
---------------------------------------------------
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.

Figure 31-14 Menu 15.2.1 Specifying an Inside Server

31.5.3 Example 3: Multiple Public IP Addresses With Inside Servers
In this example, there are 3 IGAs from our ISP. There are many departments but two have their own
FTP server. All departments share the same router. The example will reserve one IGA for each
department with an FTP server and all departments use the other IGA. Map the FTP servers to the first
two IGAs and the other LAN traffic to the remaining IGA. Map the third IGA to an inside web server
and mail server. Four rules need to be configured, two bi-directional and two unidirectional as follows.
Map the first IGA to the first inside FTP server for FTP traffic in both directions (1 : 1 mapping,
giving both local and global IP addresses).
Map the second IGA to our second inside FTP server for FTP traffic in both directions (1 : 1 mapping,
giving both local and global IP addresses).
Network Address Translation (NAT)
Figure 31-13 NAT Example 2
Start Port No.
Default
0
0
0
0
0
0
0
0
0
0
0
Press ENTER to Confirm or ESC to Cancel:
Prestige 662HW Series User's Guide
End Port No. IP Address
Default 192.168.1.10
0 0.0.0.0
0 0.0.0.0
0 0.0.0.0
0 0.0.0.0
0 0.0.0.0
0 0.0.0.0
0 0.0.0.0
0 0.0.0.0
0 0.0.0.0
0 0.0.0.0
0 0.0.0.0
31-11