Assigned Numbers Authority (IANA) manages port numbers and classifies them as Well Known,
Registered, and Dynamic (or Private). The Well Known ports are those from 0 through 1023; the
Registered Ports are those from 1024 through 49151; and the Dynamic ports are those from 49152
through 65535.
Port or Range
Click the drop-down menu button and select the process (port number):
VPN 3000 Concentrator Series User Guide
Configuration | Policy Management | Traffic Management | Rules | Add, Modify, or Copy
ECHO (7)
= Used by ping for network testing.
DISCARD (9)
= Used for network debugging and measurement.
FTP-DATA (20)
= File Transfer Protocol, data port.
FTP (21)
= File Transfer Protocol, control port.
TELNET (23)
= Terminal emulation.
SMTP (25)
= Simple Mail Transfer Protocol.
DNS (53)
= Domain Name System.
TFTP (69)
= Trivial File Transfer Protocol.
FINGER (79)
= Network user inquiry.
HTTP (80)
= Hypertext Transfer Protocol.
POP3 (110)
= Post Office Protocol, version 3.
NNTP (119)
= Network News Transfer Protocol.
NTP (123)
= Network Time Protocol.
NetBIOS Name Service (137)
= NetBIOS datagram service.
NetBIOS (138)
NetBIOS Session (139)
= NetBIOS session management.
IMAP (143)
= Internet Mail Access Protocol.
= Simple Network Management Protocol.
SNMP (161)
SNMP-TRAP (162)
= SNMP event or trap handling.
BGP (179)
= Border Gateway Protocol.
= Lightweight Directory Access Protocol.
LDAP (389)
HTTPS (443)
= HTTP over a secure session (TLS/SSL).
SMTPS (465)
= SMTP over a secure session (TLS/SSL).
= Internet Key Exchange Protocol (was ISAKMP/Oakley).
IKE (500)
SYSLOG (514)
= UNIX syslog server (UDP only).
RIP (520)
= Routing Information Protocol (UDP only).
= NNTP over a secure session (TLS/SSL).
NNTPS (563)
= LDAP over a secure session (TLS/SSL).
LDAP/SSL (636)
Telnet/SSL (992)
= Telnet over a secure session (TLS/SSL).
LapLink (1547)
= Remote file management and mail.
= Layer 2 Tunneling Protocol.
L2TP (1701)
PPTP (1723)
= Point-to-Point Tunneling Protocol
= Network Basic Input Output System, host name assignment.
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