mDNS Stops working on WLC 2504 after upgrade to 8.1

[Michael Benadiba]

I have a cisco WLC 2504 just upgraded to 8.1. 

Using iPhone on the Wireless and AirPlay devices on the Wired network, I was working just fine on 8.0.  The mDNS proxy function was working and I could discover all my wired AirPlay devices (An AirPort, a Denon AVR, and various other AirTunes services)

After upgrading to 8.1 there are no entries being added to the Domain > IP list. I do see the Wired devices in the Browser.

I See this debug error in the console
*Bonjour_Msg_Task: Jun 15 22:54:56.329: bgInsertBonjSrvProviderString :1684 ERROR : Maximum SP entries allowed = 0 !!

It seems that the services are being discovered properly but they are not being added to the Service Provider list because some value is maxed out at 0 entries. How can i set the maximum value to be larger than 0?

Thanks,

[Michael Benadiba]

i am also unable to add any Priority Mac. I get an error message noting that the maximum number of addresses for the SP has been reached. There are no Priority Mac specified.

I have rolled back to 8.0.115 and everything is again working as normal.

[ajc]

Add to this list on which mDNS does not work the following:

8.0.121.0

8.0.120.0

8.1.131.0

I am proceeding to test 8.2.100.0 in a few minutes.

[Rasika Nayanajith]

I do not think mDNS gateway function is supported on 2504 model since 8.1.x release.

http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/crn81.html

Features Not Supported on Cisco 2504 WLC

• Autoinstall
• Cisco WLC integration with Lync SDN API
• Bonjour Gateway
• Application Visibility and Control (AVC) for FlexConnect local switched access points

Note However, AVC for local mode APs is supported.

• Bandwidth Contract
• Service Port
• AppleTalk Bridging
• Right-to-Use Licensing
• PMIPv6
• AP Stateful Switchover (SSO) and client SSO
• Multicast-to-Unicast

HTH

Rasika

[sberkovitz]

It's not specifically the gateway that was a problem, mDNS was just broken in the releases mentioned.

I've confirmed in my testing that it is again functional in 8.2.100.0.

[ajc]

Thanks berkovitz,

Just to add that my note before was referring to mDNS tests on WLC 5500 and 8510 on versions before 8.2.100.0.

I did not have time yesterday to try 8.2.100.0, I will try today and post my results.

In any case, I will check the release notes on that version to be safe nothing else is broken again.

[ajc]

After working with Cisco TAC, a new release 8.0.132.0 was published. This one has the fix for mDNS on WLC 5500, not sure about 2500 and 8500 but I will confirm it and post another note here.

thanks

[Michael Benadiba]

Looks like it is a known issue in 8.1.102. We need to wait for a newer version release.

Here is the Bug ID: CSCus71140 search in bug search tool ; https://tools.cisco.com/bugsearch/.

For the Release Notes for Cisco Wireless Controllers please have a look into the below link

http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/crn81.html#pgfId-1282964

- See more at: https://supportforums.cisco.com/discussion/12525221/bonjour-stopped-working-when-upgrading-811020#sthash.YCGAR6ia.dpuf 

[sberkovitz]

Still a problem in 8.1.122.0 unfortunately.