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  • 1.  ip multicast helper-map

    Posted 10-05-2009 21:49

    Hello? All Juniper users and experts.

    I am Jeff and a Johnny-come-lately as you see my nickname.


    As a title in my question,[ip multicast helper-map broadcast] command used in Cisco.

    I understood that it allows IP multicast routing in a multicast-capable internetwork between two broadcast-only internetworks.


    Is there any similar command line in Juniper's router?


    Thank you for your help


    Best Regards


    Jeff LEE


  • 2.  RE: ip multicast helper-map
    Best Answer

    Posted 10-06-2009 05:01

    No such command in JUNOS, I am afraid.

    May I ask what You are actually trying to achieve? If the task is to pass broadcasts between 2 Ethernet segments separated by routed network, You could do this by using CCC/l2circuit.

    CCC/l2circuit will pass broadcasts on Ethernet/L2 level meaning both subnet IP broadcasts (like and "all-1" IP broadscasts ( will pass. AFAIK, Cisco is not capable of passing both simultaneously, either one or another, so consider it as added benefit of CCC/L2circuit 🙂