[mythtv-users] OT: MythtvOSD & Multicast issues?

[Todd D. Volz]

----- "Ben Lancaster" wrote: 
> Hi all, 
> I'm having trouble with Multicast and the mythtvosd command. When I 
> attempt to send a (valid) mythtvosd alert, I'm told "sendto: operation 
> not permitted". Similarly, ping -t 1 -c 2 224.0.0.1 gives the same output. 
> I'm presuming that the issue lies somewhere on my network, which is 
> organised as follows: ADSL Router (DHCP Server), directly plugged in to 
> an ethernet Hub and a Wireless access point (acting as a bridge). My 
> master backend/living room front-end is plugged in to the wired hub, and 
> my slave backend/network-storage and an additional front-end are plugged 
> in to the access point (by ethernet). On the slave backend (which 
> doubles up as a mailserver, db server, web server) is protected by APF 
> and BFD, could these be causing the problem? 
> Forgive my ignorance, I know very little about networking and iptables! 
> Thanks in advance, 
> Ben 
> _______________________________________________ 
> mythtv-users mailing list 
> mythtv-users at mythtv.org 
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users 

I found that APF is an iptables based firewall project and if multicast isn't allowed out it won't work assuming that you are sending from your backend server. 

Where are you sending the command from? 
Where are you sending the ping command from? 
What do you expect to receive the command (if the answer is "my frontends" please specify how many)? 

What is BFD? (Quick google search didn't come up with anything appropriate) 

Are you sure that mythtvosd is multicast aware? The only place that I have found so far that says anything about multicast and mythtvosd is on the voip-info wiki page (http://voip-info.org/wiki/view/Asterisk+tips+MythTV+integration). I haven't found anything that mentions that mythtvosd is multicast aware. (I took a look through the mythtvosd README and a VERY quick search through the source code of mythtvosd). 

Have you tried send the mythtvosd command to the master backend? 

The other way is to hard code a command for each frontend. 

Todd 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mythtv.org/pipermail/mythtv-users/attachments/20080429/6e0df540/attachment.htm