Cisco 761M Installation Manual page 85

Table A-5 Currently Assigned TCP and UDP Port Numbers
Port Keyword
0 –
1–4 –
5 RJE
7 ECHO
9 DISCARD
11 USERS
13 DAYTIME
15 NETSTAT
17 QUOTE
19 CHARGEN
20 FTP-DATA
21 FTP
23 TELNET
25 SMTP
37 TIME
39 RLP
42 NAMESERVER
43 NICNAME
49 LOGIN
53 DOMAIN
67 BOOTPS
68 BOOTPC
69 TFTP
75 –
77 –
79 FINGER
Description
Reserved
Unassigned
Remote Job Entry
Echo
Discard
Active users
Daytime
Who is up or NETSTAT
Quote of the Day
Character Generator
File Transfer Protocol (data)
File Transfer Protocol
Terminal connection
Simple Mail Transport Protocol
Time
Resource Location Protocol
Host Name Server
Who is
Login Host Protocol
Domain Name Service
Bootstrap Protocol Server
Bootstrap Protocol Client
Trivial File Transfer Protocol
Any private dial-out service
Any private RJE service
Finger
Specifications A-5