You setup SNMP in multiple offices of your company. Your SNMP software manager is not receiving data from other offices like it is for your main office. You suspect that firewall changes are to…

The correct answer is A. 161 B. 162. SNMP uses two well-known UDP ports: Port 161 is used by SNMP agents to receive queries (GET, SET requests) from the SNMP manager. Port 162 is used by SNMP agents to send unsolicited trap/notification messages to the SNMP manager. Both ports must be open in firewalls for full…

Submitted by takeshi77· Apr 18, 2026Network Forensics

Question

You setup SNMP in multiple offices of your company. Your SNMP software manager is not receiving data from other offices like it is for your main office. You suspect that firewall changes are to blame. What ports should you open for SNMP to work through Firewalls (Select 2)

Options

A161
B162
C163
D160

How the community answered

(48 responses)

A
94% (45)
C
4% (2)
D
2% (1)

Explanation

SNMP uses two well-known UDP ports: Port 161 is used by SNMP agents to receive queries (GET, SET requests) from the SNMP manager. Port 162 is used by SNMP agents to send unsolicited trap/notification messages to the SNMP manager. Both ports must be open in firewalls for full bidirectional SNMP communication - 161 for polling and 162 for receiving traps. Ports 160 and 163 are not associated with SNMP.

Topics

#SNMP#Firewall#Port Numbers#Network Protocols

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