CentOS

Dear all.

I need to disable multicast on the interface, so as to temporary disable it i use command ifconfig eth0 -multicast.

Could some one pls tell me how to disable permanently.

Thanks.

Welcome to the CentOS fora. Please see the recommended reading for new users linked in my signature.

Permanently disabling multicast seems likely to break things, but I suppose you could append that command to /etc/rc.d/rc.local .