Chapter 4. Configuring Static Routes and the Default Gateway
4.1. Introduction to Understanding Routing and Gateway
DHCP, an address of a gateway that leads to an upstream network or the Internet is usually assigned. This gateway is usually referred to as the default gateway as it is the gateway to use if no better route is known to the system (and present in the routing table). Network administrators often use the first or last host
IPaddress in the network as the gateway address; for example,
192.168.10.254. Not to be confused by the address which represents the network itself; in this example,
192.168.10.0, or the subnet's broadcast address; in this example
192.168.10.255. The default gateway is traditionally a network router. The default gateway is for any and all traffic which is not destined for the local network and for which no preferred route is specified in the routing table.