Multicast routing

I'd like to set up multicast routing on my Linux firewall. The idea is
to have NATed nodes behind the firewall receive multicast traffic.

Despite having Googled extensively, I haven't been able to find a Linux
implementation of a PIM-SM daemon. I found a really old implementation
which doesn't compile, and a patched mrouted which does compile, but
fails to run.

Has anybody here successfully done this with a recent 2.6 kernel?

KR wrote:
> I'd like to set up multicast routing on my Linux firewall. The idea is
> to have NATed nodes behind the firewall receive multicast traffic.
>
> Despite having Googled extensively, I haven't been able to find a Linux
> implementation of a PIM-SM daemon. I found a really old implementation
> which doesn't compile, and a patched mrouted which does compile, but
> fails to run.
>
> Has anybody here successfully done this with a recent 2.6 kernel?

If you don't mind setting individual routes up manually then smcroute
will work on 2.6.

http://www.cschill.de/smcroute

There is also igmpproxy on sourceforge which also IIRC needs the
upstream addresses setting up.

If you want a proper routing daemon then I think xorp does multicast,
though I haven't used it.

www.xorp.org.

Andy.