[H-GEN] traceroute results query
Craig Eldershaw
ce at comlab.ox.ac.uk
Tue Oct 24 06:55:22 EDT 2000
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>what do the !X 's mean? I have no idea
from man traceroute(8):
Other possible annotations after the time are !H, !N, or
!P (got a host, network or protocol unreachable,
respectively), !A, !C (access to the network or host,
respectively, is prohibited), !S or !F (source route
failed or fragmentation needed - neither of these should
ever occur and the associated gateway is busted if you see
>>> one), !X (communication administratively prohibited), or
!<N> (ICMP unreachable code N). If almost all the probes
result in some kind of unreachable, traceroute will give
up and exit.
C.
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