ICMPINFO(8) | System Manager's Manual | ICMPINFO(8) |
icmpinfo - interpret ICMP messages
icmpinfo [-v[v[v]]] [-n] [-p] [-s] [-l] [-k]
Icmpinfo is a tool for looking at the ICMP messages received on the running host. It can be used to detect and record 'bombs' as well as various network problems.
The output format is as follows (all on one line):
MMM DD HH:MM:SS ICMP_type[sub-type]
< sender_ip [sender_name] > unreach_ip [unreach_name]
sp=source_port dp=dest_port seq=sequence sz=packet_size
In normal operation, icmpinfo will only report on "weird" packets, mainly icmp_unreachable.
The packet decoding is planned for ICMP Unreachable outputs and might not be significant for all other Icmp types. Output can be shorter when implied by the packet size or the icmp type.
Laurent Demailly <dl@hplyot.obspm.fr>. Free software.
V1.11 - 28 August 1995 | dl's free utilities |