Re: Routing multicast streams

[Michael Wilson <bananaski@redhotant.com>]

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Hi there

Would it be possible for you to forward your mrouted.conf ?

Thanks

----- Original Message -----
From: Karsten Siebert <Karsten.Siebert@dataplanet.de>
To: Michael Wilson <bananaski@bigfoot.com>; <plesnik@inetbrno.cz>; LinuxDVB
<linux-dvb@linuxtv.org>
Sent: Saturday, October 21, 2000 12:09 PM
Subject: Re: Routing multicast streams


> You can do several things to route IP multicast to the LAN:
>
> I added a little switch in /etc/mrouted.conf, which enables automatic PID
> setting/removing. If a Windows machine wants to receive IP multicast it
> initiates an IGMP message. Mrouted reads this and sents an UDP message to
> dvbd, which then enables the PID. In case of FAZZT this is PID 1041 (I
have
> set the last two addresses of the IP multicast address to the PID for
> simplicity 0x417=1041).
>
> You can set the PID manually using /etc/dvbd.conf in the filter section.
> Don't forget to set the routing entry: route add 224.0.0.0 netmask
240.0.0.0
> on all your interfaces.
>
> The problem with mrouted unfortunately is stability. It stops after a
couple
> of milion packets. You always can monitor multicasting in /proc/net/mr_...
>
> As the PIDs are set anyway differently for downloads and streams, one
could
> avoid using mrouted and just switch from the dvb module to the appropriate
> LAN module by changing the device structure of the allocated skbuff
> structure if an IP multicast packets arrives via satellite. I do this by
> setting fast forward in the kernel, changing the device structure if a
> packet arrives before the net_if is issued. Now if the appropriate PID is
> set, all packtes are transmitted directly to the output queue of the LAN
> device (but always, even if there is no listener).
>
>
> Karsten
>
>
> ----- Original Message -----
> From: "Michael Wilson" <bananaski@redhotant.com>
> To: <plesnik@inetbrno.cz>; "LinuxDVB" <linux-dvb@linuxtv.org>
> Sent: Saturday, October 21, 2000 12:41 PM
> Subject: Re: Routing multicast streams
>
>
> > I have the same problem with my setup but I wish to route the FAZZT
system
> > which is on 224.224.4.17, all mrouted sees is 224.0.0.1, 224.0.0.2 and
> > 224.0.0.4
> >
> > ----- Original Message -----
> > From: Petr Plesnik <plesnik@inetbrno.cz>
> > To: LinuxDVB <linux-dvb@linuxtv.org>
> > Sent: Saturday, October 21, 2000 8:43 AM
> > Subject: Routing multicast streams
> >
> >
> > > Hello,
> > >
> > > a have problem with routing multicast streams. I have this
> configuration:
> > > Linux server with DVB card, dvb working ok. This server is connected
> thru
> > > eth0 to router (linux).
> > > Router has 4 ethernet cards. One is connected to server with DVB,
second
> > is
> > > connected to public internet,
> > > and another two is two intranet LAN segments 10.2.2.x and 10.2.1.x. In
> > > windows box on private lan for example my machine 10.2.2.10 I can use
> > > sattelite connection thru squid on server. This working OK. But if I
run
> > > mrouted with standart config file on server machine and try to connect
> to
> > > europeonline for watching streaming TV, it does not work. Can anybody
> help
> > > me with setting mrouted, or need I setup router machine to?
> > >
> > >
> > > Thanks for any help Peter
> > >
> > >
> >
>
>