[pulseaudio-tickets] [PulseAudio] #436: Default RTP Multicast Address

[PulseAudio]

#436: Default RTP Multicast Address
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 Reporter:  coling           |       Owner:  lennart
     Type:  enhancement      |      Status:  new    
 Priority:  normal           |   Milestone:         
Component:  module-rtp-*     |    Severity:  normal 
 Keywords:  multicast, igmp  |  
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 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

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Ticket URL: <http://www.pulseaudio.org/ticket/436>
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