This parameter usually does not need to be specified. If it is specified, NetDefendOS responds toARP queries sent to this address. A special section below explains this parameter in more depth.Local IP Address and Gateway are mutually exclusive and either one or the other should bespecified.• MetricThis is a metric value assigned to the route and is used as a weight when performingcomparisons between alternate routes. If two routes are equivalent but have different metricvalues then the route with the lowest metric value is taken.The metric value is also used by Route Failover and Route Load Balancing.For more information, see Section 4.4, “Route Load Balancing” and Section 4.2.3, “RouteFailover”.A Typical Routing ScenarioThe diagram below illustrates a typical NetDefend Firewall usage scenario.Figure 4.1. A Typical Routing ScenarioIn the above diagram, the LAN interface is connected to the network 192.168.0.0/24 and the DMZinterface is connected to the network 10.4.0.0/16. The WAN interface is connected to the network195.66.77.0/24 and the address of the ISP gateway to the public Internet is 195.66.77.4.The associated routing table for this would be as follows:Route # Interface Destination Gateway1 lan 192.168.0.0/242 dmz 10.4.0.0/163 wan 195.66.77.0/244.2.1. The Principles of Routing Chapter 4. Routing149
