Re: How do I set up a multicast tunnel?

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sun, Sep 28, 2008 at 08:40:33PM -0500, David Huang wrote:
> Hi, I'm looking for info on how to set up a multicast tunnel between a  
> NetBSD-current machine and a Linux machine. Is mrouted the way to go,  
> or is there something better/easier now? I've seen mention of  
> tunneling through GRE, but I'm not sure on the details.
> 
> Both machines are serving as NAT devices for their respective LANs and  
> are connected to the public internet. There's also an IPsec tunnel  
> between the two. The multicast tunnel doesn't have to go through  
> IPsec, but it would be nice. I think I saw some Linux documentation  
> saying that one could simply set up the IPsec SPDs entries to have  
> traffic directed to 224.0.0.0/4 go through the tunnel, but IIRC, that  
> seemed to work on the Linux side, but not on the NetBSD side (I could  
> be wrong though; it's been a while since I tried it).

I'd do it with mrouted tunnels. It should be possible to make the mrouted
traffic go though the ipsec tunnel then

-- 
Manuel Bouyer, LIP6, Universite Paris VI.           
Manuel.Bouyer%lip6.fr@localhost
     NetBSD: 26 ans d'experience feront toujours la difference
--