Type 0
Echo reply
Type 3: Code 0
Destination network unreachable
Type 3: Code 1
Destination host unreachable
Type 3: Code 6
Network unknown
Type 3: Code 7
Host unknown
Type 3: Code 9
Network administratively prohibited
Type 3: Code 10
Host administratively prohibited
Type 3: Code 13
Communication administratively prohibited
Type 4
Source quench (congestion control)
Type 5
Rediret
Type 5: Code 0
Redirect datagram for the network
Type 5: Code 1
Redirect datagram for the host
Type 8
Echo request (ping message)
Type 11
Time exceeded
Type 11: Code 0
TTL expired