[pulseaudio-tickets] [PulseAudio] #377: Default RTP Multicast Address

[PulseAudio]

#377: Default RTP Multicast Address
-----------------------------------+----------------------------------------
  Reporter:  smarquilly at acipia.fr  |       Owner:  lennart        
      Type:  enhancement           |      Status:  new            
  Priority:  normal                |   Milestone:                 
 Component:  module-rtp-*          |    Severity:  normal         
Resolution:                        |    Keywords:  multicast, igmp
-----------------------------------+----------------------------------------
Old description:

> Hello,
>
> We use pulseaudio in our LAN and we've noticed that the default Multicast
> IP Address (ie 224.0.0.56) used by the module-rtp-send and module-rtp-
> recv seems to be part of the "well-known" Multicast adresses. As a
> result, some switches (HP Procurve in our case) won't filter the igmp
> traffic, but will broadcast it to all ports. I attached a documentation
> from HP Procurve Networking with better explanations about this on page
> 100, (4-22).
>
> We had to change the multicast IP address to resolv that issue. It seems
> that the 239.255.x.x range is dedicated to local multicast diffusion. We
> use 239.255.1.56 and it now works perfectly. My request is to have the
> default multicast IP address changed so that multicast diffusion works in
> all case with all network materials.
>
> I would be glad to provide more information,
> Best regards
> Sven Marquilly
> smarquilly at acipia.fr

New description:

 Hello,

 We use pulseaudio in our LAN and we've noticed that the default Multicast
 IP Address (ie 224.0.0.56) used by the module-rtp-send and module-rtp-recv
 seems to be part of the "well-known" Multicast adresses. As a result, some
 switches (HP Procurve in our case) won't filter the igmp traffic, but will
 broadcast it to all ports. I attached a documentation from HP Procurve
 Networking with better explanations about this on page 100, (4-22).

 We had to change the multicast IP address to resolv that issue. It seems
 that the 239.255.x.x range is dedicated to local multicast diffusion. We
 use 239.255.1.56 and it now works perfectly. My request is to have the
 default multicast IP address changed so that multicast diffusion works in
 all case with all network materials.

 I would be glad to provide more information,[[br]]
 Best regards[[br]]
 Sven Marquilly

-- 
Ticket URL: <http://www.pulseaudio.org/ticket/377#comment:3>
PulseAudio <http://pulseaudio.org/>
The PulseAudio Sound Server