Setup:


A Client =
---<NetBSD>-----------<Firewall>---<otherVPN-Gateway>---<Server>
                                      |
B Client ---<otherVPN-Gateway>--------+
 						  |
C Client ---<otherVPN-Gateway>--------+


Client B and C are in conference...
Client A can only join, if interface is in promiscuous mode.
The tunnel is working, A can ping the server and also sees the =
conference,
but no Multicastpackets are going through the tunnel.
I=B4m using Mrouted delivered with NetBSD 1.5.2 for multicastrouting.

mrouted.conf:

phyint ex0 disable
phyint ex1
tunnel ex0 192.168.222.1
tunnel ex0 192.168.221.2
tunnel ex0 192.168.224.2
pruning on

It seems to be a routing problem, because Bs VPN is encrypting As =
Mcastpackets...

-----Original Message-----
From: Manuel Bouyer [mailto:bouyer@antioche.lip6.fr]
Sent: Freitag, 2. August 2002 14:39
To: Nicolas Saurbier
Cc: Jason R Thorpe; bsd-help (E-mail) (E-mail)
Subject: Re: promiscuous mode on ex1???


On Fri, Aug 02, 2002 at 10:28:00AM +0200, Nicolas Saurbier wrote:
> Hi,
>=20
>   >What is it, exactly, that you want to do that requires promisc =
mode?
>=20
> I=B4m using NetBSD as a VPN-Gateway and I want to tunnel multicast =
Videoconferences.
> The problem is, that the Videoconf. doesn=B4t work. When I do an =
tcpdump on the internal=20
> internface (so it=B4s in promiscuous mode), the conference works...
>=20
> Any idea on that? Maybe it=B4s another problem and I don=B4t need the =
promiscuous mode...

Well, it looks like the interface isn't set up to receive multicast. =
It's
up to the application to set up multicast groups.
What application are you using and what is your setup exactly ? Do you =
have
multiple interfaces ?

--
Manuel Bouyer, LIP6, Universite Paris VI.           =
Manuel.Bouyer@lip6.fr
--