IP address and gateway info

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LEARN ABOUT FREEBSD

traceroute6

TRACEROUTE6(8)						    BSD System Manager's Manual 					    TRACEROUTE6(8)

NAME

     traceroute6 -- print the route IPv6 packets will take to a network node

SYNOPSIS

     traceroute6 [-adIlnNrvU] [-f firsthop] [-g gateway] [-m hoplimit] [-p port] [-q probes] [-s src] [-w waittime] [-A as_server] target
		 [datalen]

DESCRIPTION

     The traceroute6 utility 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 addi-
     tion 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      Turn on AS# lookups for each hop encountered.

     -A as_server
	     Turn on AS# lookups and use the given server instead of the default.

     -d      Debug mode.

     -f firsthop
	     Specify how many hops to skip in trace.

     -g gateway
	     Specify intermediate gateway (traceroute6 uses routing header).

     -I      Use ICMP6 ECHO instead of UDP datagrams.

     -l      Print both host hostnames and numeric addresses.  Normally traceroute6 prints only hostnames if -n is not specified, and only numeric
	     addresses if -n is specified.

     -m hoplimit
	     Specify maximum hoplimit, up to 255.  The default is 30 hops.

     -n      Do not resolve numeric address to hostname.

     -N      Use a packet with no upper layer header for the probes, instead of UDP datagrams.

     -p port
	     Set UDP port number to port.

     -q probes
	     Set the number of probe per hop count to probes.

     -r      Bypass the normal routing tables and send directly to a host on an attached network.  If the host is not on a directly-connected net-
	     work, an error is returned.  This option corresponds to the SO_DONTROUTE socket option; it can be used to ping a local host through
	     an interface that has no route through it (e.g., after the interface was dropped by a routing daemon).

     -s src  Src specifies the source IPv6 address to be used.

     -U      Use UDP datagrams for the probes.	This is the default.

     -v      Be verbose.

     -w waittime
	     Specify the delay time between probes.

     This 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:

	   !N	   Destination Unreachable - No Route to Host.

	   !P	   Destination Unreachable - Administratively Prohibited.

	   !S	   Destination Unreachable - Not a Neighbour.

	   !A	   Destination Unreachable - Address Unreachable.

	   !	   This is printed if the hop limit is <= 1 on a port unreachable message.  This means that the packet got to the destination, but
		   that the reply had a hop limit that was just large enough to allow it to get back to the source of the traceroute6.	This was
		   more interesting in the IPv4 case, where some IP stack bugs could be identified by this behaviour.

EXIT STATUS

     The traceroute6 utility will exit with 0 on success, and non-zero on errors.

SEE ALSO

     ping(8), ping6(8), traceroute(8)

HISTORY

     The traceroute6 utility first appeared in WIDE hydrangea IPv6 protocol stack kit.

BSD
								  August 24, 2009							       BSD

UNIX for Dummies Questions & Answers