Internet Control Message Protocol Events  
 
Event Description
OnCancel This event occurs when a blocking operation is canceled
OnEcho The OnEcho event is generated when a packet is sent to the remote host
OnError This event occurs when a control error occurs
OnReply The OnReply event is generated when reply to the ICMP echo datagram is received
OnTimeout This event occurs when a blocking operation times out
OnTrace This event occurs for each intermediate host when tracing the route from the local system to a remote host