... ClassC networks, there can only be a handful of hosts on each one compared toClass A and Class B networks. Class C networks were supposed to be for singlecompanies, and in those days before the ... multicast addresses, and Class E was for experimental use. Classes A,B, and C were used for normal, unicast traffic among clients, servers, and routers. For network and host identification purposes, ... source and destination addresses:MAC layer addresses of “physical” addresses for LANs, connection identifiers for some public data networks like Frame Relay, and Data Link addresses for other...