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stownsend
Explorer

AP541N 2.0(4) - mDNSResponder ERROR: getOptRdata - unknown opt 65002

My AP541N units (all of them) are now filling up the logs with entries like the below. Seems to be the same as here: https://supportforums.cisco.com/discussion/12221896/mdnsresponder-error-over-and-over though that is 4 months old with a poor solution of not using the Bonjour/Airplay Feature which is not an option here. 

Any Update?

ime Settings (NTP)TypeServiceDescription
Sep 24 14:45:37errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:35errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:35errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:34errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:32errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:32errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:28errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:27errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:25errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:24errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:24errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:23errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:23errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:23errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:19errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:19errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:19errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:19errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:18errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:18errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:18errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:18errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:18errmDNSResponderERROR: getOptRdata - unknown opt 65002
Sep 24 14:45:18errmDNSResponderERROR: getOptRdata - unknown opt 65002

 

1 ACCEPTED SOLUTION

Accepted Solutions

You dont need Bonjour on the WAP enabled for Airplay/Airprint to work on Apple devices :) Airprint/airplay should work anyway as long as your router supports this. So you can leave it disabled.

View solution in original post

8 REPLIES 8
Eric Moyers
Rising star

My name Eric Moyers. I am an Engineer in the Small Business Support Center.

This is actually related to a problem that originates within something that Apple changed in their Bonjour Sleep Proxy. Customer can read more about the Bonjour Sleep Proxy here: http://en.wikipedia.org/wiki/Sleep_Proxy_Service

For those that are interested there is a page for helping troubleshoot the issue located here: http://stuartcheshire.org/SleepProxy/index.html

Here is another article: http://www.dslreports.com/forum/r27042506-any-one-know-what-this-error-is

Normally the error message that I see is " mDNSResponder: ERROR: getOptRdata - unknown opt 4"

I personally have only recently started seeing the "ERROR: getOptRdata - unknown opt 65002".

I would also make sure that WMM is enabled on your Wireless routers and or Access Points.

What I usually tell customers is that if they experience this issue they should disable bonjour on the WAP.

If this does not improve your issue, please call our support center and open a case so that one of our engineers can work directly with you.

Eric Moyers
.:|:.:|:. CISCO | Eric Moyers | Cisco Technical Support |
Wireless and Surveillance Subject Matter Expert

Please rate helpful Posts and Let others know when your Question has been answered.

Wow, thank you for replying with the exact same reply that you posted 4 Months ago in the discussion I referenced in my Question. 

 

Scott<-

We had this problem as well within a client's network.

Disabled bonjour; problem solved.

Hey Frank, thank you for the reply.

Yes, Disabling Bonjour does eliminate the issue, though that solution does not work for us as Bonjour is required for AirPrint to work.   We have several iPad users that Print to our printers and we need to have it on for them to do so. 

You dont need Bonjour on the WAP enabled for Airplay/Airprint to work on Apple devices :) Airprint/airplay should work anyway as long as your router supports this. So you can leave it disabled.

View solution in original post

Thank you for the Reply.

 

I know we went though quite a bit to get AirPrint to work. The WAPs SSID are on the same VLAN/Subnet as the Printers. I can turn it off and do some testing, though was pretty sure we needed it on for it to work. 

 

Thanks!

  Scott<-

I've got the same issue. How did your tests go with it off?

Seems to be better with it off.