[OpenVPN home] [Date Prev] [Date Index] [Date Next]
[OpenVPN mailing lists] [Thread Prev] [Thread Index] [Thread Next]
Google
 
Web openvpn.net

Re: [Openvpn-users] Openvpn and rendezvous


  • Subject: Re: [Openvpn-users] Openvpn and rendezvous
  • From: Les Mikesell <lesmikesell@xxxxxxxxx>
  • Date: Fri, 05 Jan 2007 14:00:23 -0600

On Fri, 2007-01-05 at 20:42 +0100, Hans-Peter Mani wrote:

> I am trying to get discovery service like apple's rendezvous working 
> with openvpn tunnels. From what I googled I understand that i have to 
> use a multicast router like mrouted. I am far away from being an expert 
> but I tried to create a mrouted tunnel with something like this
> 
> ifconfig:
> 
> tun0  Link encap:UNSPEC  HWaddr 
> 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 
>           inet addr:10.5.5.1  P-t-P:10.5.5.2  Mask:255.255.255.255
>           UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
>           RX packets:10051 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:60457 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:100
>           RX bytes:1956681 (1.8 MiB)  TX bytes:82776222 (78.9 MiB)
> 
> /etc/mrouted.conf:
> 
> tunnel 10.5.5.1 10.5.5.2 metric 1 threshold 32
> 
> 
> However, mrouted terminates immediately and reports
> 
> warning - ignoring tun0, has invalid address (10.5.5.1) and/or mask 
> (255.255.255.255)
> 
> After some googling it seems mrouted does not work with mask 
> 255.255.255.255.
> 
> Can anyone confirm that this is the right way (using mrouted) to get 
> rendezvous working ?
> Can anyone help and can post a complete example ?

Assuming you aren't using the .0 and .3 addresses, you could
ifconfig the interface to use a netmask of 255.255.255.252
which might work if it wants to see a traditional 4-host subnet
for the route instead of a p-t-p link.

I haven't used mrouted, but have run multicast over openvpn using
the static router smcroute.  If you know the multicast group
and potential senders ahead of time you can set up static
routes to forward them.

-- 
  Les Mikesell
   lesmikesell@xxxxxxxxx


______________________
OpenVPN mailing lists
https://lists.sourceforge.net/lists/listinfo/openvpn-users