In March we introduced the Address Resolution Protocol (ARP), a half-brother to the TCP/IP stack that maps the logical IP address space into the real world of Ethernet hardware addresses. We didn’t ...

Layer 2 of the OSI model is where we find the Data Link Layer, which provides the mechanism by which data is transferred from node to node across a network. What makes this layer important is that it ...

When your computer first connects to a nework, it sends out a request on the network to lease an IP from the router. The router then leases your computer an unused IP address, which is used as a ...