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Webcast-Catalyst9k
New Member

multicast issue

Hi,

We are trying whiteboard application that use multicast ¨Ip address 224.2.1.1¨

and it not working getting an error this error on the 2950 switch :

IGMPSN: router Received non igmp pak on vlanxxx

any idea ?

Thanks

4 REPLIES

Re: multicast issue

What other devices are connecting on that VLAN to the switch?

Are those devices running the same IGMP version as your switch is, or are they running CGMP, or what?

New Member

Re: multicast issue

Hi,

The error is on Cisco2950 running IGMP conneted to the core switch Cat6509.

cat2950-cat6500-Hub1-WAN cloud-spoke

Using DMVPN v3 between Hu and spokes.

sh ip mroute on cat6500 show "stopped" for the multicast application 224.2.1.1:

(*, 224.2.1.1), 00:29:14/stopped, RP 0.0.0.0, flags: DP

Incoming interface: Null, RPF nbr 0.0.0.0

Outgoing interface list: Null

Thanks

Cisco Employee

Re: multicast issue

Would it be possible to post the cat6500 config.

Regards

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: multicast issue

I found this "receiver port can't belong to the

multicast vlan.

"

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