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Network/Host Addressing
Each address encapsulates two pieces of information
- Network ID (e.g. CMU, Scaife Hall)
- Host ID (a specific machine)
192.168.15.48/24
- The first 24 bits are the network ID
- The remaining 8 bits (32-24=8) are the host ID.
Notes:
3Com has an excellent primer on IP addressing. Everything you ever wanted to know about IPv4 but were afraid to ask.