Re: Wi-Fi network can't see Bonjour services on wired network
Re: Wi-Fi network can't see Bonjour services on wired network
- Subject: Re: Wi-Fi network can't see Bonjour services on wired network
- From: Robert Davis <email@hidden>
- Date: Wed, 13 Nov 2013 01:13:38 +0000
- Thread-topic: Wi-Fi network can't see Bonjour services on wired network
No problem. Wish i could help more. Good luck. I'm good at networking but you guys forgot more about Apple dev than i ever knew! Just trying to give back where i can.
Cheers!
RD
> On Nov 12, 2013, at 6:50 PM, "Rick Mann" <email@hidden> wrote:
>
> Apparently we have an Aironet AP. It sounds like it’s our switch, not our AP.
>
> Thanks for the info, though!
>
>> On Nov 12, 2013, at 16:46 , Robert Davis <email@hidden> wrote:
>>
>> If you are running a cisco aironet AP (AIR-APxxxx-a-k9) then you should not have any issues. I suspect you are using a Unified Mobility System or a controller based AP system (AIR-LAPxxxx-A-k9 oro AIR-CAPxxxx-A-k9). Most likely a 5508, 2504 or a Wism2 module. If this is the case then you will need go to Controller->Multicast and make sure it is in multicast mode not unicast, and set a multicast address. This is a multicast address that the controllers will send multicast data to over. I know very confusing, but point is, if you have controller based system there are a lot of other settings that need to be setup.
>>
>> Also enable the mDNS service on the controller.
>>
>> 7.4.110.0 introduced the bonjour gateway functionality to these systems. Actually the previous version did but i has a memory leak and should be avoided. A CCO login will be needed if you decide to upgrade.
>>
>> If this is the system you are using and you can tell me what version and model i can guide you through configuring it.
>>
>> Most cisco wireless systems are controller based. Non-controller based are typically only used for very very small deployments or for special needs.
>>
>> RD
>>
>>> On Nov 12, 2013, at 6:34 PM, "Bob DeRosa" <email@hidden> wrote:
>>>
>>> Could the AP be filtering out the Bonjour traffic?
>>>
>>>> On Nov 12, 2013, at 7:23 PM, "Robert Davis" <email@hidden> wrote:
>>>>
>>>> Gotcha, if you and the apple device are on the same network then you
>>>> connectivity or forwarding should not be an issue. What type of AP do you
>>>> have?
>>>>
>>>> -- RD
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>> On 11/12/13, 6:21 PM, "Rick Mann" <email@hidden> wrote:
>>>>>
>>>>> As far as I can tell, I’m on the same network. All our devices (wired or
>>>>> wireless) get 10.1.10.0/24 addresses.
>>>>>
>>>>> wifi:
>>>>>
>>>>> en0: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu
>>>>> 1500
>>>>> ether 14:10:9f:e5:04:8f
>>>>> inet6 fe80::1610:9fff:fee5:48f%en0 prefixlen 64 scopeid 0x5
>>>>> inet 10.1.10.203 netmask 0xffffff00 broadcast 10.1.10.255
>>>>> nd6 options=1<PERFORMNUD>
>>>>> media: autoselect
>>>>> status: active
>>>>>
>>>>>
>>>>> wired:
>>>>>
>>>>> en4: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>>>> options=10b<RXCSUM,TXCSUM,VLAN_HWTAGGING,AV>
>>>>> ether a8:20:66:29:69:01
>>>>> inet6 fe80::aa20:66ff:fe29:6901%en4 prefixlen 64 scopeid 0x4
>>>>> inet 10.1.10.116 netmask 0xffffff00 broadcast 10.1.10.255
>>>>> nd6 options=1<PERFORMNUD>
>>>>> media: autoselect (1000baseT <full-duplex,flow-control>)
>>>>> status: active
>>>>>
>>>>>
>>>>>
>>>>> I’m not familiar enough to know where L2/L3 occur. I don’t think there’s
>>>>> any routing in our APs.
>>>>>
>>>>>> On Nov 12, 2013, at 16:13 , Robert Davis <email@hidden> wrote:
>>>>>>
>>>>>> from:
>>>>>> http://www.cisco.com/image/gif/paws/113443/cuwn-apple-bonjour-dg-00.pdf
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> The Bonjour protocol operates on service announcements and service
>>>>>> queries which allow devices to ask and
>>>>>> advertise specific applications, such as:
>>>>>> ? Printing services
>>>>>> ? File sharing services
>>>>>> ? Remote desktop services
>>>>>> ? iTunes file sharing
>>>>>> ? iTunes Wireless iDevice Syncing (in Apple iOS v5.0+)
>>>>>> AirPlay, which offers these streaming services:
>>>>>> ? Music broadcasting in iOS v4.2+
>>>>>> ? Video broadcasting in iOS v4.3+
>>>>>> ? Full screen mirroring in iOS v5.0+ (iPad2, iPhone4S or later)
>>>>>> ?
>>>>>> Each query or advertisement is sent to the Bonjour multicast address
>>>>>> for delivery to all clients on the subnet.
>>>>>> Apples Bonjour protocol relies on Multicast DNS (mDNS) operating at
>>>>>> UDP port 5353 and sends to these
>>>>>> reserved group addresses:
>>>>>> ? IPv4 Group Address - 224.0.0.251
>>>>>> ? IPv6 Group Address - FF02::FB
>>>>>> The addresses used by the Bonjour protocol are link-local multicast
>>>>>> addresses and thus are only forwarded on
>>>>>> the local L2 domain. Routers cannot use multicast routing to redirect
>>>>>> the traffic because the time to live (TTL)
>>>>>> is set to one, and link-local multicast is meant to stay local by
>>>>>> design.
>>>>>>
>>>>>>
>>>>>> Also, Apple likes to use multicast DNS or mDNS with bonjour. A lot of
>>>>>> vendors are having to “fix” this issue to allow enterprise deployments
>>>>>> to use apple. You would figure with as many large schools and hospitals
>>>>>> using apple they would digress from their link-local design.
>>>>>>
>>>>>> Make sure you are on the same network with your apple device (should be
>>>>>> in same subnet) and it should work. Either that or implement PIM or a
>>>>>> bonjour gateway device.
>>>>>>
>>>>>>
>>>>>> -- RD
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>> On 11/12/13, 6:08 PM, "Robert Davis" <email@hidden> wrote:
>>>>>>>
>>>>>>> Also, Bonjour is not bcast, it is multicast by nature. Multicast will
>>>>>>> work fine on a local segment, but will not cross layer 3 boundaries
>>>>>>> (routers/firewalls/l3 switch ports). PIM sparse-dense or PIM sparse
>>>>>>> mode
>>>>>>> will help forward multicast traffic between segments.
>>>>>>>
>>>>>>> Keep in mind, MCast is not BCast. Two different animals.
>>>>>>>
>>>>>>> -- RD
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> On 11/12/13, 6:03 PM, "Bob DeRosa" <email@hidden> wrote:
>>>>>>>>
>>>>>>>> It could be doing DHCP relay without passing the bonjour traffic? Can
>>>>>>>> you sniff the traffic?
>>>>>>>>
>>>>>>>>> On Nov 12, 2013, at 6:48 PM, "Rick Mann" <email@hidden>
>>>>>>>>> wrote:
>>>>>>>>>> On Nov 12, 2013, at 15:40 , Bob DeRosa <email@hidden> wrote:
>>>>>>>>>> Your AP may not be passing the broadcasts through. You may need
>>>>>>>>>> something like this.
>>>>>>>>>>
>>>>>>>>>> http://www.aerohive.com/solutions/technology-behind-solution/bonjour-
>>>>>>>>>> gat
>>>>>>>>>> eway
>>>>>>>>> Wouldn¹t that affect DHCP (if it were not passing broadcasts)?
>>>>>>>>> --
>>>>>>>>> Rick
>>>>>>>>
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>>>>>
>>>>> --
>>>>> Rick
>
>
> --
> Rick
>
>
>
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