Traceroute for Inactive Interface

Traceroute is a tool for displaying the route taken by a packet from an IP network on their way to a given host. When a traceroute is performed the packets are always sent out of the interface that is the NH for the active route and there is no option to bypass it.

When a traceroute is performed, packets are sent out of active interface even if we specify an inactive interface. From Junos OS Release 17.4R1 onwards, you can configure traceroute to send out packets through an inactive next-hop by specifying the traceroute next-hop address to a destination through an inactive next hop.