TRACEROUTE6(8) | System Manager's Manual | TRACEROUTE6(8) |
traceroute6
—
traceroute6 |
[-adIlnrv ] [-A
as_server] [-f
firsthop] [-m
hoplimit] [-p
port] [-q
probes] [-s
src] [-w
waittime] target
[datalen] |
traceroute6
uses the IPv6 protocol hop limit field to
elicit an ICMPv6 TIME_EXCEEDED
response from each
gateway along the path to some host.
The only mandatory parameter is the destination host name or IPv6 address. The default probe datagram carries 12 bytes of payload, in addition to the IPv6 header. The size of the payload can be specified by giving a length (in bytes) after the destination host name.
Other options are:
-A
-a
-d
-f
firsthop-I
-l
traceroute6
prints only hostnames if
-n
is not specified, and only numeric addresses if
-n
is specified.-m
hoplimit-n
-p
porttraceroute6
hopes that
nothing is listening on UDP ports base to
base + nhops - 1 at the destination host (so an
ICMPv6 PORT_UNREACHABLE
message will be returned
to terminate the route tracing). If something is listening on a port in
the default range, this option can be used to pick an unused port
range.-q
probestraceroute6
sends three probe packets.-r
-s
src-v
TIME_EXCEEDED
and
UNREACHABLEs
are listed.-w
waittimeThis program prints the route to the given destination and the round-trip time to each gateway, in the same manner as traceroute.
Here is a list of possible annotations after the round-trip time for each gateway:
traceroute6
. This was more
interesting in the IPv4 case, where some IP stack bugs could be identified
by this behaviour.traceroute6
utility exits 0 on success,
and >0 if an error occurs.
traceroute6
command first appeared in WIDE hydrangea
IPv6 protocol stack kit.
April 23, 2018 | NetBSD 9.4 |