This guide to all the major protocols of a TCP/IP-based network includes an introduction to binary and hexadecimal arithmetic and coverage of L2TP, LAN analysis screens and engineering-level detail on IPv6 routing. The second edition also features: an enhanced description of IP, including IPv6, plus examples of dynamic routing such as RIPv2, OSPF, BGP, NAT and CIDR; enhanced descriptions of ARP, RARP and BOOTP, with added descriptions of IARP, DHCP and RADIUS; a revised description of FTP; and an added description of HTTP.