Cisco Systems OL-6426-02 Benutzerhandbuch
D-1
Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
A P P E N D I X
D
Common Port Assignments
lists currently assigned Transmission Control Protocol (TCP) port numbers. To the extent
possible, the User Datagram Protocol (UDP) uses the same numbers.
Table D-1
Currently Assigned TCP and UDP Port Numbers
Port
Keyword
Description
0
—
Reserved
1–4
—
Unassigned
5
RJE
Remote job entry
7
ECHO
Echo
9
DISCARD
Discard
11
USERS
Active users
13
DAYTIME
Daytime
15
NETSTAT
Netstat
17
QUOTE
Quote of the day
19
CHARGEN
Character generator
20
FTP-DATA
File Transfer Protocol (data)
21
FTP
File Transfer Protocol
23
TELNET
Terminal connection
25
SMTP
Simple Mail Transport Protocol
37
TIME
Time
39
RLP
Resource Location Protocol
42
NAMESERVER
Hostname server
43
NICNAME
Who is
49
LOGIN
Login Host Protocol
53
DOMAIN
Domain name server
67
BOOTPS
Bootstrap Protocol Server
68
BOOTPC
Bootstrap Protocol Client
69
TFTP
Trivial File Transfer Protocol
75
–
Any private dial-out service