Your organization is deploying a new network-monitoring application that uses Simple Network Management Protocol (SNMP) to poll routers and switches for interface statistics. The security team will only allow the single default port required for those SNMP queries through the firewall. Which port should be permitted so the monitoring server can gather data from the devices?
SNMP is an application-layer protocol that uses the connectionless User Datagram Protocol. Devices listen for get and set requests on UDP port 161, while traps are sent on UDP port 162. Because the monitoring server initiates polls, UDP 161 must be opened. The other listed ports are used by Telnet (23/TCP), SSH (22/TCP), or SNMP traps (162/UDP), not for SNMP queries.
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What does SNMP do in network management?
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Why is UDP used for SNMP instead of TCP?
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CompTIA A+ 220-1101 (V14)
Networking
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