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# mtrace

#### Syntax

mtrace sourceAddress [ destinationAddress [ groupAddress [ responseAddress ] ] ]
[ maxHops ] [ detailed ]

#### Release Information

Command introduced before JUNOSe Release 7.1.0.

#### Description

Discovers the routes that multicast packets follow when travelling to their destinations. There is no no version.

#### Options

- sourceAddress—DNS name or unicast IP address of the multicast-capable device at the beginning of the path.
- destinationAddress—DNS name or unicast address of the device at the end of the path. The default destination is the router from which you type the command.
- groupAddress—DNS name or multicast address of the group for which you want to trace routes. The default address is 224.2.0.1 (the group used for MBONE Audio).
- responseAddress—IP address that receives the results of the trace
- maxHops—Maximum number of hops allowed for the trace; default value is 64.
- detailed—Provides a detailed description of the trace, rather than a summary

#### Mode

Privileged Exec, User Exec

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