... IP address is local or remote • How to identify valid and invalid IP host addresses based on a network number and subnet mask Background / Preparation This lab exercise focuses on the basics ... ones, the ANDing result is a one. If the two bits are a zero and a one, or two zeros, the ANDing result is a zero. Basically, this means that a combination of 2 ones results in a one, anything ... one LAN from another Routers separate subnets, and determine when a packet can go from one subnet to another. Each router a packet goes through is considered a hop. Subnet masks help workstations,...