port (user-defined application rule view)

Function

The port command specifies a port in a user-defined application rule.

The undo port command deletes the port in a user-defined application rule.

Format

port port

undo port { port | all }

Parameters

Parameter	Description	Value
port	Specifies a port in a user-defined application rule.	The value is an integer ranging from 1 to 65535.
all	Deletes all port.	-

Views

User-defined application rule view

Default Level

2: Configuration level

Usage Guidelines

You can specify a maximum of 4 ports in a user-defined application rule.

After you configure the port, the SA engine will use the transport layer protocol and ports, that is, the 3-tuple to match the network packets. If you know the destination 3-tuple of the detecting flow, you can configure a user-defined 3-tuple to accelerate the application identification. For example, if you have a server, you can configure a 3-tuple rule according to the IP address, port, and protocol of the server, so the rule can identify all the accessing flow to this server. At least one IP address or one port should be in the 3-tuple rule. Note that the port number set here is only the destination port number.

Example

# Set the port in user-defined application rule rule1 to 80.

<sysname> system-view
[sysname] sa
[sysname-sa] user-defined-application name UD_abc
[sysname-sa-user-defined-app-UD_abc] rule name rule1
[sysname-sa-user-defined-app-UD_abc-rule-rule1] port 80