Appendix C. Lists of Reserved Ports, ICMP Types and Codes, and Internet Protocols

Name

Port/protocol

Description

bootps

67/udp

bootp server

bootpc

68/tcp

bootp client

bootpc

68/udp

bootp client

tftp

69/tcp

Trivial File Transfer

tftp

69/udp

Trivial File Transfer

gopher

70/tcp

gopher server

finger

79/tcp

Finger

www-http

80/tcp

WWW

www-http

80/udp

WWW

kerberos

88/tcp

Kerberos

kerberos

88/udp

Kerberos

pop2

109/tcp

PostOffice V.2

pop3

110/tcp

PostOffice V.3

sunrpc

111/tcp

RPC 4.0 portmapper

sunrpc

111/udp

RPC 4.0 portmapper

auth/ident

113/tcp

Authentication Service

auth

113/udp

Authentication Service

audionews

114/tcp

Audio News Multicast

audionews

114/udp

Audio News Multicast

nntp

119/tcp

Usenet Network News Transfer

nntp

119/udp

Usenet Network News Transfer

ntp

123/tcp

Network Time Protocol

ntp

123/udp

Network Time Protocol

netbios-ns

137/tcp

NETBIOS Name Service

netbios-ns

137/udp

NETBIOS Name Service

netbios-dgm

138/tcp

NETBIOS Datagram Service

netbios-dgm

138/udp

NETBIOS Datagram Service

netbios-ssn

139/tcp

NETBIOS Session Service

netbios-ssn

139/udp

NETBIOS Session Service

imap

143/tcp

Internet Message Access Protocol

imap

143/udp

Internet Message Access Protocol

sql-net

150/tcp

SQL-NET

sql-net

150/udp

SQL-NET

sqlsrv

156/tcp

SQL Service

sqlsrv

156/udp

SQL Service

snmp

161/tcp

 

snmp

161/udp

 

snmp-trap

162/tcp

 

snmp-trap

162/udp

 

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