Technical Note: Excessive ICMP Packets from Second...

FortiNAC

NOTE: FortiNAC is now named FortiNAC-F. For post-9.4 articles, see FortiNAC-F. FortiNAC is a zero-trust network access solution that provides users with enhanced visibility into the Internet of Things (IoT) devices on their enterprise networks.

Article Id 195712

Description

Excessive ICMP Packets from Secondary Control Server When Not in Control

Scope
Version: All
Solution

Version: All

Issue: Excessive ICMP Packets from Secondary Control Server when not in control.

Solution: There is no solution. This is expected behavior.

SNMP traps are being sent to both Primary and Secondary Control Server appliances from network switches by design. However, since the Secondary Control Server is not in control, port 162 is not listening. Therefore, the Secondary Control Server replies with a port unreachable ICMP "port 162 unreachable" message.

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Technical Note: Excessive ICMP Packets from Secondary Control Server When Not in Control