5580 & multicast (bonjour)

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Jul 8th, 2011
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I have just completed an 18AP install at my place of employment and we have run into a slight problem.

The Apple clients on our wireless LAN cannot discover printers through the bonjour protocol.

Am I correct in saying this would be related to either a unicast or multicast issue?

Can someone point me in the correct direction on how to begin configuring either unicast or multicast between the 5508's and other switching devices.

Currently I have the 2 5508's patched into a 3750 (which provides routing) and from that switch on, the other AP's connect from the network.


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Surendra BG Fri, 07/08/2011 - 08:26
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Enable Multicast Globally on the WLC..

WLC GUI >> Controller >> Multicast >> Enable Global Multicast >> Enable Snooping >> Let the timeout be in defaults (60 seconds)..

and follow the below link..


lemme know if this helps and please dont forget to rate hte usefull posts!!



hitu.parmar Thu, 12/08/2011 - 11:13
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i am having similar issues .. I enable snooping from 3 to 15 min... Now i am able to print or printer shows up for 15 min then it disappear again until I restart the printer again... This happen to two different printers

its a AIR-WLC2112-K9

Product version boot loader:

pcroak Fri, 12/09/2011 - 04:28
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Airprint may not be compatible with IGMP snooping -- I've seen cases where igmp snooping needs to be disabled for reliable service. I'm not sure if Airprint can be configured to participate in IGMP.


hitu.parmar Fri, 12/09/2011 - 13:58
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if i disable IGMP snooping then it doesn't even show up on the iphones or ipads.. its says printer cannot be found

if i restart the printer again its availble for 15 min or so then it disappers -

printer  epson artisan 837


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