FVS338 ProSafe VPN Firewall 50 Reference Manual
Firewall Protection and Content Filtering 4-13
v1.0, September 2006
Allowing Videoconference from Restricted Addresses
If you want to allow incoming videoconferencing to be initiated from a restricted range of outside
IP addresses, such as from a branch office, you can create an inbound rule. In the example shown
to the right, CU-SeeMe connections are allowed only from a specified range of external IP
addresses.
Setting Up One-to-One NAT Mapping
In this example, we will configure multi-NAT to support multiple public IP addresses on one WAN
interface. By creating an inbound rule, we will configure the firewall to host an additional public
IP address and associate this address with a Web server on the LAN.
To configure the FVS338 for additional IP addresses:
1. Select Security from the main menu and Firewall Rules from the submenu.
2. Click Add under the Inbound Services table. The Add LAN WAN Inbound Service screen
will display.
Figure 4-7
Tip: If your ISP allows you to have more than one public IP address for your use, you
can use the additional public IP addresses to map to servers on your LAN. One of
these public IP addresses will be used as the primary IP address of the router. This
address will be used to provide Internet access to your LAN PCs through NAT. The
other addresses are available to map to your servers.