Monitoring DHCP Messages

When Monitoring Agent is intercepting DHCP messages, it captures every UDP packet that is received or sent on UDP port 67 (BOOTP/DHCP server).

Monitoring Agent processes messages for the following DHCP message types:

DHCPACK—Sent from the server to the client when a lease is acknowledged. The Monitoring Agent application translates the client IP address and IP address lease time into an ipUp event.
DHCPNAK—Sent from the server to the client when a lease is not renewed or the client configuration is wrong. The Monitoring Agent application translates the client IP address into an ipDown event.
DHCPRELEASE—Sent from the client to the server when the client cancels the lease. The Monitoring Agent application translates the client IP address into an ipDown event.

All other DHCP messages are ignored.