Filter Multicast traffic from Stations

JEROME BOSC · ‎10-24-2008

Hello,

I would like to filter Multicast traffic coming from stations on a LAN. These stations can request multicast traffic but I do not want them to send multicast trafic in order to not disturb my multicast routing. If the send xcast trafic they are recorded on the RP.

I am using PIM Sparse Mode.

Does any filter on a 4500 swich or on a router 7600 can achieve this ?

Thanks for your help.

Jeff

Giuseppe Larosa · ‎10-24-2008

Hello Jeff,

on the RP you can configure a filter on register messages

ip pim accept-register

To configure a candidate rendezvous point (RP) router to filter Protocol Independent Multicast (PIM) register messages, use the ip pim accept-register command in global configuration mode. To disable this function, use the no form of this command.

ip pim [vrf vrf-name] accept-register {list access-list | route-map map-name}

no ip pim [vrf vrf-name] accept-register {list access-list | route-map map-name}

see

http://www.cisco.com/en/US/docs/ios/ipmulti/command/reference/imc_04.html#wp1012700

It should avoid the unwanted sources to register with the RP, register messages from PIM DR routers are not blocked I think.

Hope to help

Giuseppe