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ProSafe Gigabit 8 Port VPN Firewall FVS318G Reference Manual
4-16 Firewall Protection and Content Filtering
v1.1, August 2010
LAN WAN Inbound Rule: 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, CU-SeeMe connections are allowed only from a specified range of external IP
addresses.
LAN WAN or DMZ WAN Inbound Rule: Setting Up One-to-One NAT Mapping
If you arrange with your ISP 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 or DMZ. One of these public IP
addresses will be used as the primary IP address of the VPN firewall. 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.
In the example shown in Figure 4-10 on page 4-17, we have configured multi-NAT to support
multiple public IP addresses on one WAN interface. The inbound rule instructs the VPN firewall
to host an additional public IP address (10.1.0.5) and to associate this address with the Web server
on the LAN (at 192.168.1.1). We also instruct the VPN firewall to translate the incoming HTTP
port number (port 80) to a different port number (port 8080).
Figure 4-9