traceroute6

Displays the route that packets take to the network IPv6 host.
Syntax
traceroute6[-4][6][-d][-F][-ffirst_ttl][-ggate,...][-I][-T][-idevice][-mmax_ttl][-Nsqueries][-pport][-ttos][-lflow_label][-wwaittime][-qnqueries][-r][-ssrc_addr][-zsendwait]host-addr[packetlen]
Command Default

Traceroute IPv6 is disabled.

Parameters
-4
Displays IPv4 hops.
-6
Displays IPv6 hops.
-d
Enables socket-level debugging.
-F
Does not fragment the packets.
-ffirst tll
Starts from the first_ttl hop (instead from 1).
-ggate
Routes packets through the specified gateway. (maximum 8 for IPv4 and 127 for IPv6).
-I
Uses ICMP ECHO for tracerouting.
-T
Uses TCP SYN for tracerouting. Default port is 80.
idevice
Specifies a network interface with which to operate.
-mmax tll
Sets the max number of hops (max TTL to be reached). Default is 30.
-Nsqueries
Sets the number of probes to be tried simultaneously (default is 16).
-pport
Sets the destination port to use. It is either initial udp port value for "default" method (incremented by each probe, default is 33434), or initial seq for "icmp" (incremented as well, default from 1), or some constant destination port for other methods (with default of 80 for "tcp", 53 for "udp", etc.) .
-ttos
Sets the TOS (IPv4 type of service) or TC (IPv6 traffic class) value for outgoing packets.
-lflow_label
Uses specified flow_label for IPv6 packets.
-wwaittime
Sets the number of seconds to wait for response to a probe (default is 5.0). Non-integer (float point) values allowed too.
-qnqueries
Sets the number of probes per each hop. Default is 3.
-r
Bypasses the normal routing and sends the probes directly to a host on an attached network.
-ssrc_address
Uses source src_addr for outgoing packets.
-zsendwait
Minimal time interval between probes (default 0). If the value is more than 10, then it specifies a number in milliseconds, else it is a number of seconds (float point values allowed too).
host-address
The IPv6 host address to which tracerouting is applied.
packetlen
Sets the packet length.
Modes

Privileged EXEC mode

Usage Guidelines

Use the traceroute6 command to help troubleshoot network access or network performance issues.

This command is supported on all the controllers including the SmartZone Data Plane.

Examples

The following example uses IPv6 addresses to trace the route from the device to the IPv6 host at 2001:DB8::200C:417A. 

device# traceroute6 -6 2001:DB8::200C:417A
traceroute to 2001:DB8::200C:417A (2001:db8::200c:417a), 30 hops max, 80 byte packets
 1  2070::1 (2070::1)  8.239 ms !N  8.286 ms !N  8.375 ms !N
Parent topic: Commands Si - Z