On Mon, Jan 12, 2004 at 10:36:33PM -0800, duong hung wrote: > Hi , > > My network have config as : > > Cisco -------------- linux box ----------- Cisco > 203.168.3.1 203.168.3.2 192.168.0.1 192.168.0.2 > > I want multicast packets to flow between two router > cisco . Multicast routing use PIMv2. Any people help > me this problem If the linux box is not multicast aware and not a part of PIMv2 cloud, then you have to set up a GRE tunnel between the two cisco's. Unless you run something like pimd on the linux box. But again because you're using private IP's on one of the cisco's, I don't exactly know what the implications would be on natting the pim control packets. Ramin > > Thanks