Allow Multicast IP packets through router

[mustafa.chelik]

I have very simple network: PC-1 -> Cisco 2900 Series Router <- PC-2

PC-1 streams a video with 234.5.5.5:4000 IP/Port and PC-2 should receive and render it. But by default the router doesn't route multicast packets to other side. I found some information for this like ip multicast-routing, but it didn't work. Can someone tell me exact commands to enable multicasting in Cisco 2900 Series Router?

Thank you

[mustafa.chelik]

Hmm... so you mean that player should send this message, right? What is my player doesn't send the message you are talking about? Can I force router to route the packets anyway?

I use VLC but it's a little old version. I'll test it with latest version and come back.

Thank you very much

[mustafa.chelik]

It worked. Thank you very much Jon.

To be honest, sometimes I did not open VLC to see the result. Sometimes I just opened WireShark in the other PC to observe incoming packets. So I should opened VLC because VLC sends multicast join message. I write these to people who will find this thread.

Can you tell me how to limit multicast ip addresses?

Thank you very much

[Jon Marshall]

Glad to hear it is working..

What exactly do you mean by limiting multicast IP addresses ?

Jon

[mustafa.chelik]

Now every multicast packet will go through router. How can I allow only one address (for example only 234.5.5.5)? You told me before that I should do it using ACL.

Thank you very much

[Jon Marshall]

You can use an acl along the lines of -

access-list 101 permit ip any host 234.5.5.5
access-list 101 deny ip any 224.0.0.0 15.255.255.255
access-list 101 permit ip any any

and then apply it inbound to your interface on the router.

Jon

[mustafa.chelik]

Ok, I will try it tomorrow at office. Thank you very much Jon.

Best wishes