Disable multicast traffic in all Vlan's

[spice2003]

Hello

Im trying to disable Multicast traffic on my procurve 2510 switches, i tried 2 methods:

1) disable IGMP on every interface --> vlan 10 ip igmp blocked <port number>   it works but it a lot of work, i have hundreds of ports and i cant go over all interfaces.

second option: by default, procurve switch floods multicast traffic like broadcast unless you change it.

i tried like the following example: Vlan 10 ip igmp

and in some cases it does work, it look like it disabled multicast gloably on the entire Vlan (i know that it's not a real disableing, it just configure the switch to forward approval multicast access tvia the qurier to some address right?)

the problem that it's not work on Vlan-1, vlan 1 is the native Vlan and the management vlan with IP-address, maybe the problem is because Vlan 1 is the Vlan with the IP address and it acts like qurier or something?

Maybe i did't understood the igmp concept, but i want to disable the multicast flooding and lie on the swithc, to tell him that i have igmp router and configure vlan <number> ip igmp and disable the flooding but i dont have real igmp i just want to diable multicast in someway..

(i want to disable multicast because im working in development network and some users doing stress multicast tests on their devices and sometimes it leak out o to my trusted network.)

Thanks!!

[Vince_Whirlwind]

I just enable "ip igmp" on each VLAN, then enable "ip multicast-routing" globally.

That stops it flooding multicast traffic.

I also configure "no ip igmp querier" on each VLAN on every switch apart from my cores.

[spice2003]

Thanks but it doesnt work for me, i did those commands on my L3 switch and on my Layer2 switches, then i did iperf between 2 hosts, and the multicast went well..

i did: 

iperf -s -u -B 224.0.55.55 -i 1

iperf -c 224.0.55.55 -u -T 32 -t 3 -i 1

And look on the switch:

Active Group Addresses Reports Queries Querier Access Port
---------------------- ------- ------- -------------------
224.0.55.55                6            0
239.255.255.250              297       0
239.255.255.253 55       160        0

No queries but there are "reports", and if im doing ip igmp blocked 30 on the specific interface, it does bloekced the multicast traffic. do you think that the only solutin is to disable it per port?

Thank you.

[Vince_Whirlwind · Accepted solution]

Reports are fine, aren't they?

All you want to do is prevent multicast from being flooded. If you turn on IGMP, then only traffic that hosts have subscribed to will be forwarded.

[spice2003]

You right, it does work, my bad :0