1. 5.3 ICMPhistorical

    Historical notes on ICMP, its purpose, message types, Ping, and Traceroute.

  2. 5.4 IP Protocolhistorical

    Historical notes on the IP protocol, packet format, and IP fragmentation.

  3. 5.5 NAThistorical

    Historical notes on NAT and why private/public address translation is used.

  4. 6.1 Data Link Layerhistorical

    Historical notes on data-link-layer devices, MTU, and path MTU.

  5. 7.1 Computer Networkhistorical

    Historical overview of OSI, TCP/IP layers, representative protocols, and the network transmission flow.