hey John, i believe juniper filters out macs when igmp snooping is enabled on the vlan, normally this would be fine however i think their filters are also capturing legitimate mac add/ranges
why do you need igmp snooping on ur phone vlan? if possible seperate ur voive vlan from data and disable igmp snooping on voice vlan weve seen the same issue with isis Sent from my iPhone Payam T Chychi On 2012-01-12, at 4:02 PM, "Paulhamus, Jon" <[email protected]> wrote: > Hi Group, > > I have an issue with IGMP snooping enabled on EX switches that it's blocking > IP phones from booting. The phone system is a 3Com NBX system. When > IGMP-snooping is enabled, the phones will never register with the NCP - > disabling on that VLAN solves the issue, but I need IGMP snooping on that > VLAN for other reasons. > > What I've tried to fix the issue is creating a firewall filter both on the > VLAN and all switch interfaces facing the phone system allowing the multicast > group to be processed by the RE, but this does not seem to be working for me. > > I've also created static IGMP groups and applied them on all interfaces / > uplinks toward the phone switch as well - this seems to help as the phones > will eventually boot after ~ 3 to 5 minutes. Phones with IGMP snooping > disabled on the VLAN boot in about 24 seconds. Packet captures are not > showing any other multicast groups, or even any other activity... if anyone > can provide any assistance I would certainly appreciate it. I have a cast > opened with advanced TAC now, but not getting anywhere. > > > Thank you very much, > Jon > > _______________________________________________ > juniper-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
