Draytek Vigor2920 Series User Manual page 152

Item
Source/Destination Port
Below is an example of service type objects settings.
Vigor2920 Series User's Guide
Description
Source Port and the Destination Port column are available for
TCP/UDP protocol. It can be ignored for other protocols. The
filter rule will filter out any port number.
(=) – when the first and last value are the same, it indicates one
port; when the first and last values are different, it indicates a
range for the port and available for this profile.
(!=) – when the first and last value are the same,
all the ports except the port defined here; when the first
and
last values are different, it indicates that all the ports
except the range defined here are available for this service
type.
(>) – the port number greater than this value is available.
(<) – the port number less than this value is available for this
profile.
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it indicates