Table of Contents
Advertisement
Use the SUA Server page to forward incoming service requests to the server(s)
on your local network. You may enter a single port number or a range of port
numbers to be forwarded, and the local IP address of the desired server. The port
number identifies a service; for example, web service is on port 80 and FTP on
port 21. In some cases, such as for unknown services or where one server can
support more than one service (for example both FTP and web service), it might
be better to specify a range of port numbers.
In addition to the servers for specified services, NAT supports a default server. A
service request that does not have a server explicitly designated for it is
forwarded to the default server. If the default is not defined, the service request is
simply discarded.
The most often used port numbers are shown in the following table. Please refer
to RFC 1700 for further information about port numbers.
Services
File Transfer Protocol (FTP) Data
FTP Commands
Telnet
Simple Mail Transfer Protocol (SMTP)
Email
Domain Name Server (DNS)
Trivial File Transfer Protocol (TFTP)
finger
World Wide Web (HTTP)
POP3 Email
SUN Remote Procedure Call (RPC)
Network News Transfer Protocol
(NNTP)
Network Time Protocol (NTP)
News
Simple Management Network Protocol
(SNMP)
SNMP (traps)
Border Gateway Protocol (BGP)
Secure HTTP (HTTPS)
rlogin
rexec
talk
ntalk
Open Windows
Network File System (NFS)
X11
Routing Information Protocol (RIP)
Port Number/Protocol
20/tcp
21/tcp
23/tcp
25/tcp
53/tcp and 53/udp
69/udp
79/tcp
80/tcp
110/tcp
111/udp
119/tcp
123/tcp and 123/udp
144/tcp
161/udp
162/udp
179/tcp
443/tcp
513/tcp
514/tcp
517/tcp and 517/udp
518/tcp and 518/udp
2000/tcp and 2000/udp
2049/tcp
6000/tcp and 6000/udp
520/udp
A02-RA142-W54
WebShare 142W
Pag. 51
Advertisement
Table of Contents
