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Re: CBPeripheral object / identifier not unique for iOS device

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Re: CBPeripheral object / identifier not unique for iOS device

Subject: Re: CBPeripheral object / identifier not unique for iOS device
From: Jeff Rowberg <email@hidden>
Date: Tue, 08 Dec 2015 16:45:28 -0500

iOS devices use random/private addressing, and the MAC changes regularly. I would expect iOS's reported peripheral identifier to change when this happens. Without bonding, there is no possibility of continued identification of one specific device past about 15 minutes or so, if I recall correctly.

Does the pattern you are seeing fit with this explanation, or is there something happening that eliminates this possibility?

Jeff

On Tue, Dec 8, 2015 at 3:00 PM, <email@hidden> wrote:

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Today's Topics:

1. Re: CBPeripheral object / identifier not unique for iOS
device (Nick Brook)

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Message: 1
Date: Tue, 08 Dec 2015 10:32:22 +0800
From: Nick Brook <email@hidden>
To: "email@hidden Bluetooth"
<email@hidden>
Subject: Re: CBPeripheral object / identifier not unique for iOS
device
Message-ID: <email@hidden">email@hidden>
Content-Type: text/plain; charset="utf-8"

Does anyone have any idea about this? Should I create a bug report?

Nick
> On 28 Nov 2015, at 08:48, Nick Brook <email@hidden> wrote:
>
> I’m connecting several iOS devices, each advertising and scanning. After connection some information is retrieved from the peripheral, and then it disconnects. When another advertisement packet is received, it checks if the CBPeripheral object has already been discovered previously. My problem is that I am seeing multiple CBPeripheral instances with different identifiers for the same device. Is this correct behaviour? Shouldn’t the identifiers (at least) be constant for each peripheral device?
>
> iOS 9.x
>
> Thanks
> Nick
>
> W: http://nickbrook.me <http://nickbrook.me/>

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