Subject: Multicast Problem

From: Ridvan Erdogan <[email-masked]>
Date: Wed, 29 May 1996 23:55:52 -0700

Hi all,

We have a multicast problem. Is there anybody who had this kind of problem before?

Here is what we have:

A Cisco router: Latest version of Cisco Software is running on it and ip multicast is enabled.
An FDDI subnet, subnet A
An Ethernet subnet, subnet B
An SGI workstation, HostSGI

Our FDDI subnet, subnet A, is directly connected to the Cisco router. We are able to send and receive audio and video within this subnet and from/to outside of this subnet. One of the hosts on subnet A, HostSGI is dual-homed. It also has an Ethernet card and is connected to subnet B.  Mrouted  version3.8 is running on this workstation. When we create a session on subnet A, we are able to see this session on subnet B. We can send and receive audio and video between subnet A and subnet B. But, we cannot see the sessions created outside of the subnet A. For instance, we cannot join "MBone Audio" session from subnet B.

We have tried installing  mrouted into one of the hosts on the subnet B and setting  up a tunnel between HostSGI and that host, but it didn't solve our problem. Before we have enabled ip multicasting on Cisco router, we had a multicast tunnel to HostSGI and didn't have this problem.

Any comments, ideas are very appreciated.

Regards...
Ridvan Erdogan
[email-masked]