System Administration Guide: IP Services

protocols Database

The protocols database lists the TCP/IP protocols that are installed on your system and their numbers. The Solaris installation program automatically creates the database. This file seldom requires any administration.

The protocols database contains the names of the TCP/IP protocols that are installed on the system. The protocols(4) man page describes the syntax of this database. An example of the /etc/inet/protocols file follows.

Example 5–9 /etc/inet/protocols File

# Internet (IP) protocols
ip    0   IP    # internet protocol, pseudo protocol number
icmp  1   ICMP  # internet control message protocol
tcp   6   TCP   # transmission control protocol
udp  17   UDP   # user datagram protocol