Airport Express problem

Question

DottorSam Author

Level 1

8 points

Airport Express problem

Hi guys,

I've got a question, my home is cabled in the way below:

Modem + Router Cisco X3000 is connected to DLS provider service

Airport Express is connected via ethernet to Cisco X3000 and it's configured in Bridge Mode (DHCP and NAT off)

Playstation4 and Apple TV1 via ethernet to Cisco X3000

iMac is connected to Airport Express via ethernet

Apple TV2 is connected to Airport Express via WiFi

Problem is that unless I connect my iPhone to the Airport Express wirelessly, I can’t interact with the PS4, the Apple TV1 and the Apple TV2 (specifically, I can’t use the remote control apps)

Any remote control service is not available (Apple TV1, Apple TV2 and PS4) if my iPhone is connected to the X3000 WiFi network.

Why is that so? What settings can I check?

Thank you

iPhone 7, iOS 10

Posted on Sep 21, 2016 6:19 AM

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Answer 1

Tesserax

Level 10

158,490 points

Sep 21, 2016 8:01 AM in response to DottorSam

You will want to configure both routers for a roaming type network.

You have already reconfigured the Express as a bridge and connected to the Cisco router by Ethernet. All that is left is to rename the Express' network name to be the same as that provided by the Cisco. Also be sure to use the same security type & password on both.

No setting changes should be required for the Cisco.

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Answer 2

DottorSam Author

Level 1

8 points

Sep 21, 2016 12:54 PM in response to Tesserax

It doesn't work. I mean, I think that's not the problem because I've tried to power off the Airport and the Cisco still don't recognise any device. I think Cisco X3000 is the problem. I found this on the internet:

Symptom: Apple remote app doesn't work if we enable MDNS snooping in the controller. If we disable, MDNS snooping and have Apple TV and remote app installed client in same VLAN, it works fine. If we enable MDNS snooping, even in same VLAN, it doesn't work.

In the configuration page there's not any MDNS.

Ps: AirPlay doesn't work neither

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Answer 3

Tesserax

Level 10

158,490 points

Sep 21, 2016 1:22 PM in response to DottorSam

AirPlay utilizes Bonjour which, in turn, relies on the multicast DNS (mDNS) IP protocol to discovery AirPlay-ready devices. It then uses other IP protocols for streaming.

mDNS normally does not travel beyond a local network. If you have implemented VLANs on your Cisco router, and you are trying to use AirPlay over different VLAN segments, you would have to employ network-wide Bonjour.

The following Cisco blog article may prove an interesting read.

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