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Reference Manual for the Model FVS318 Cable/DSL ProSafe VPN Firewall
Virtual Private Networking 6-5
Check the LAN Address Ranges
First, be sure that the two LANs have different IP address ranges. If both networks are using the
NETGEAR default address range of 192.168.0.x, the connection will not work. In this case, you
must change one FVS318’s LAN IP Address and DHCP range to a different range such as
192.168.3.x.. To change the second FVS318’s LAN address range, follow these steps:
1. Go to the LAN IP Setup menu of the second FVS318
2. Change the IP Address to 192.168.3.1
3. Change the DHCP Starting Address to 192.168.3.2
4. Change the DHCP Ending Address to 192.168.3.100
5. Change any Reserved IP Addresses to be part of the 192.168.3.x network
6. If you have configured Port Forwarding, Trusted User, or Static Routes, you may need to
change these configurations as well.
7. Click Apply
At this point the firewall’s IP address will change and you will be disconnected from the
firewall’s configuration.
8. Reboot all PCs on this network.
Configure the First Firewall
The simplest method of linking the two firewalls will be to use the IKE protocol, allowing them to
automatically negotiate the connection and exchange keying information. In this case, the
configuration of the two firewalls differs only in the setting of the destination address ranges. To
configure the first firewall, follow these steps: