Services And Port Numbers - ZyXEL Communications NBG334S User Manual

Chapter 15 Bandwidth Management

15.6.1 Services and Port Numbers

The commonly used services and port numbers are shown in the following table. Please refer
to RFC 1700 for further information about port numbers. Next to the name of the service, two
fields appear in brackets. The first field indicates the IP protocol type (TCP, UDP, or ICMP).
The second field indicates the IP port number that defines the service. (Note that there may be
more than one IP protocol type. For example, look at the DNS service.
UDP port 53 and TCP port 53.
146
means
(UDP/TCP:53)
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