new router to multicast setup

[Shibu1978]

Hi All,

I am currently having the attached Multicast setup in our office.  due to business needs we would like to add one more router with a DS3 link to the existing Multicast setup.  in the current setup we use PIM-SM with IGMP v3 for SSM mapping. everything works well as of now.

As we are adding a new location to the setup i would like to clarrify the below points.

1) On the new location router does not support SSM mapping so we have to use PIM-SM only .. to get the stream from Source what are the other configs needed at Router C?

2) Other than reachability from Router A to Router C via Router B is there any other config needed ie  GRE tunnel e.t.c?

Please put your suggestions and guidance

Thanks

[Shibu1978]

Could some one reply on this?

Thanks

[Mohamed Sobair]

Hi,

You require some new configuration. You can utilize Pim Spars Mode with RP config. all what you need is to designate router (A) to be the RP and configure and Statically configure the RP address on  all routers. of course you will utilize IGMP version one or 2 On the LAN from router C.

Here is the relative config:

ip pim rp-address x.x.x.x (where x.x.x.x) is the RP address (Router C).

This command should be configured on all routers including the RP.

Of course, all the time reachability to the RP and Muticast source is manadatory for your multicast to work.

HTH

Mohamed

[Shibu1978]

Hi ,

Thanks for your reply.

As i pointed out earlier PIM-SM with SSM & IGMP V3 are being used between Router A & Router ... since we are running this kind of setup  RP is not needed.  

Now while adding Router C on the network    & u suggested to configure RP on all the routers will it create any issues ? any impact on mutlcast traffic?

Please reply

[Mohamed Sobair]

Hi,

It will not create any issues and have no impact on your multicast Network.

You have hosts utilizing IGMPv3 , while another utilizing IGMPv1 or 2. the first one uses SSM by creating a source base tree. while the second one creates a shared tree to the RP.

I hope this helps,

Regards,

Mohamed

[Shibu1978]

Thanks Mohamed,

Is there any way i can restrict some of the multicast source group  say 234.0.2.1 to 234.0.2.29 at Router C?

[Mohamed Sobair · Accepted solution]

On Router C Interface , where the recievers are connected, apply the following:

Interface x/y

ip igmp access-group 1

access-list 1 deny 234.0.2.1

access-list 1 deny 234.0.2.29

access-list 1 permit any

Regards,

Mohamed

[Shibu1978]

thanks dear

Will configure accordingly and let u know

Thanks