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11-26
NAT
Figure 11-21 Example 3: Menu 15.2
11.4.4 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-One-to-One
mapping as port numbers do
not
change for this mapping type. 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:
Page 142 / 285
Prestige 324 Intelligent Broadband Sharing Gateway
NAT
11-27
Figure 11-22 NAT Example 4
Other applications, for example, gaming programs are NAT unfriendly because
they embed addressing information in the data stream. These applications still
won’t work through NAT even when using
One-to-One
and
Many One-to-One
mapping types.
Follow the steps outlined in example 3 above to configure these two menus as follows.
Figure 11-23 Example 4: Menu 15.1.1.1 — Address Mapping Rule
After you’ve configured your rule, you should be able to check the settings in menu 15.1.1 as shown next.
Menu 15.1.1.1 Address Mapping Rule
Type= Many-One-to-One
Local IP:
Global IP:
Start= 10.132.50.1
End = 10.132.50.3
Press ENTER to Confirm or ESC to Cancel:
Page 143 / 285
11-28
NAT
Figure 11-24 Example 4: Menu 15.1.1 — Address Mapping Rules
Menu 15.1.1 - Address Mapping Rules
Set Name= Example4
Idx Local Start IP
Local End IP
Global Start IP Global End IP
Type
--- --------------- --------------- --------------- --------------- ------
192.168.1.12
10.132.50.1
10.132.50.3
M-1-1
2.
3.
4.
5.
6.
7.
8.
9.
10.
Action= Edit
Select Rule=
Press ENTER to Confirm or ESC to Cancel:
Page 145 / 285
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Advanced Management
This section provides information on Firewall, Filter Configuration, SNMP Configuration, System
Information and Diagnosis, Firmware and Configuration File Maintenance, System Maintenance
and Call Scheduling.
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