Example 3: Multiple Public Ip Addresses With Inside Servers; Figure 45 Menu 15.2: Specifying An Inside Server - Nortel BCM50e Configuration

106 Chapter 9 Network Address Translation (NAT)

Figure 45 Menu 15.2: Specifying an inside server

Rule Act.
------------------------------------------------------
001 No
002 No
003 No
004 No
005 No
006 No
007 No
008 No
009 No
010 No
Select Command= None
Press ENTER to Confirm or ESC to Cancel:

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 reserves 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 uni-directional, as follows.
1
2
3
4
N0115789
Menu 15.2 - NAT Server Setup
Default Server: 192.168.1.10
Start Port
0
0
0
0
0
0
0
0
0
0
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 the second internal FTP server for FTP traffic in both
directions (1 : 1 mapping, giving both local and global IP addresses).
Map the other outgoing LAN traffic to IGA3 (Many : 1 mapping).
You also map your third IGA to the web server and mail server on the LAN. If
you choose type Server, you can specify multiple servers, of different types,
to other computers behind NAT on the LAN.
End Port IP Address
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
Select Rule= N/A