About
The Internet Control Message Protocol (ICMP) are message used to:
- exchange information,
- and error information
in the Internet Protocol (IP).
Example of ICMP Utility
Type
- address-unreachable
- bad-header
- beyond-scope
- communication-prohibited
- destination-unreachable
- echo-reply
- echo-request
- failed-policy
- fragmentation-needed
- host-precedence-violation
- host-prohibited
- host-redirect
- host-unknown
- host-unreachable
- ip-header-bad
- neighbour-advertisement
- neighbour-solicitation
- network-prohibited
- network-redirect
- network-unknown
- network-unreachable
- no-route
- packet-too-big
- parameter-problem
- port-unreachable
- precedence-cutoff
- protocol-unreachable
- redirect
- reject-route
- required-option-missing
- router-advertisement
- router-solicitation
- source-quench
- source-route-failed
- time-exceeded
- timestamp-reply
- timestamp-request
- tos-host-redirect
- tos-host-unreachable
- tos-network-redirect
- tos-network-unreachable
- ttl-zero-during-reassembly
- ttl-zero-during-transit
- unknown-header-type
- unknown-option