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multicast problem on ASA

I have configure two firewall on the same inside VLAN( The outside of these two firewall is connect to differnet WAN link. Firewall A( is forward multicast group packet to Server A( Firewall B( is forward multicast group packet to Server B(

However only Server A can receive multicast packet. When i unplug the Firewall A inside interface, Server B can receive multicast packet.

The problem is all igmp report (join group message) will go to firewall A when both firewall connected to inside VLAN.

Is there any solution for this.

Thank you.

  • Firewalling
Everyone's tags (2)
Cisco Employee

Re: multicast problem on ASA

So the topology is like this??

  ( ServerA-----------( (group

                                              |                                           |

                             inside vlan|                                           |   outside vlan

                                              |                                           |

  ( ServerB---------( (group

Could you pls. copy and paste the "sh run int" output from both the firewalls for the inside interface?

Do you have IGMP join group configured on both the firewall's inside interfaces?

Here is a good multicast doc.