Chapter 3 – RouteFinder Software Operation
Multi-Tech RouteFinder RF650VPN User Guide
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Network Card (eth2)
The third Network card (eth2) is configured here. This network card (eth2) is the interface to the optional
DMZ network.
The optional third network card (eth2) can be used as a DMZ as described in Chapter 2, and is
configured in the same way as eth0 and eth1.
A DMZ (De-militarized Zone) is a special LAN on the public network side of a firewall to allow a single
WAN router to support both private (VPN) and public access to resources. Using a DMZ allows one IP
Address (computer) to be exposed to the Internet. Some applications require multiple TCP/IP ports to be
open. A DMZ allows just one computer to be exposed for that purpose. It is recommended that you set
your computer with a static IP if you want to use DMZ.
Proxy ARP on this Interface
If you checked the Proxy ARP on this Interface checkbox for a network card, the RouteFinder will
automatically announce itself as responsible for all packets to destinations for which it has an Interface
Route. You can use this function to "half-bridge" a network into another LAN segment. NOTE: All packet
filtering rules still apply when Proxy ARP is enabled. This is not a full bridging function !
Possible Error: The Interfaces menu doesn’t contain entry fields for all the network cards.
Possible cause of error: The missing network card was added after the installation of the RouteFinder,
or it wasn’t recognised during the installation.
Solution: Reinstall the RouteFinder software. You can use the backup feature (described earlier in this
chapter) to easily transfer your configuration between the installations.