How to configure the source port for sends trap messages?

Created: Jun 27, 2019 16:58:10Latest reply: Jun 27, 2019 16:59:02 18 1 0 0
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How to configure the source port for sends trap messages?

  • x
  • convention:

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Moderator Official Created Jun 27, 2019 16:59:02 Helpful(0) Helpful(0)

For S series switch, to improve security of network packets, run the "snmp-agent trap source-port" command to configure the source port that sends trap messages. Therefore, the user firewall filters packets based on the port number.

By default, a random port is used to send trap messages, and no configuration file is generated. After you configure a specific source port, the corresponding configuration file is generated. If you delete the specified source port, no configuration file is generated.
If a device sends packets to the NMS in Inform mode and the snmp-agent trap source-port command is run to change the source port number, SNMP uses the new source port instead of the original port to receive response packets from the NMS. As a result, packets are retransmitted.
  • x
  • convention:

All Answers
All_About_Switch Moderator Official Created Jun 27, 2019 16:59:02 Helpful(0) Helpful(0)

For S series switch, to improve security of network packets, run the "snmp-agent trap source-port" command to configure the source port that sends trap messages. Therefore, the user firewall filters packets based on the port number.

By default, a random port is used to send trap messages, and no configuration file is generated. After you configure a specific source port, the corresponding configuration file is generated. If you delete the specified source port, no configuration file is generated.
If a device sends packets to the NMS in Inform mode and the snmp-agent trap source-port command is run to change the source port number, SNMP uses the new source port instead of the original port to receive response packets from the NMS. As a result, packets are retransmitted.
  • x
  • convention:

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