problem for filtering multicast 224.0.0.2

Hello,

My computeur have :(OS linux FC6)
- a network card (eth0) in network 10.1.2.0/24
- a network card (eth1) in network 192.168.1.0/24

I try to filter packet with destination 224.0.0.2
(multicast) which comes from
CISCO'switch  with protocol HSRP because they are present on
eth1 in network
192.168.1.0 and it's bad trafic.

Have you the good rules to do that ?

Thank you.