ICMP (internet control message protocol) packets are used for a variety of
reasons. Normally they include messages or queries regarding the operation
of a network. Some of the more used types of ICMP packets are as follows:
ICMP requests: happens when you "ping" an IP address
ICMP replies: is the response generated by the destination
address in response to an ICMP request
Destination Unreachable: is the response generated by the end
gateway/router/etc when the network/host you are trying to reach is
unavailable
If you do a search for RFC792, you can get more information on the types of
packets used in an ICMP packet. I hope this helps you.
Salomé Reíllo
<sreillo AT SISTEL DOT E
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Hi everybody. Does anyone know why I am having ICMP packets between cluster
members. I have had to add a rule to permit ICMP packets between members
cluster in order to have the cluster working. Do you know why it is
happening this?
What are this ICMP packets used for?
Thanks in advance.
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