\unnchapentry{Preface}{10001}{Preface}{1}
\numchapentry{Networking Concepts}{1}{Introduction}{3}
\numsecentry{Reliable Byte-streams (Phone Calls)}{1.1}{Stream Communications}{3}
\numsecentry{Best-effort Datagrams (Mailed Letters)}{1.2}{Datagram Communications}{3}
\numsecentry{The Internet Protocols}{1.3}{The TCP/IP Protocols}{4}
\numsubsecentry{The Basic Internet Protocols}{1.3.1}{Basic Protocols}{4}
\numsubsecentry{TCP and UDP Ports}{1.3.2}{Ports}{5}
\numsecentry{Making TCP/IP Connections (And Some Terminology)}{1.4}{Making Connections}{5}
\numchapentry{Networking With \command {gawk}}{2}{Using Networking}{7}
\numsecentry{\command {gawk}'s Networking Mechanisms}{2.1}{Gawk Special Files}{7}
\numsubsecentry{The Fields of the Special File Name}{2.1.1}{Special File Fields}{8}
\numsubsecentry{Comparing Protocols}{2.1.2}{Comparing Protocols}{10}
\numsubsubsecentry{\file {/inet/tcp}}{2.1.2.1}{File /inet/tcp}{10}
\numsubsubsecentry{\file {/inet/udp}}{2.1.2.2}{File /inet/udp}{11}
