CNCopyCurrentNetworkInfo() is returning bad data

Apple introduced the CNCopyCurrentNetworkInfo() function in OS 4.1.

https://developer.apple.com/library/ios/#documentation/SystemConfiguration/Reference/CaptiveNetworkRef/Reference/reference.html#//apple_ref/doc/c_ref/kCNNetworkInfoKeySSIDData

According to the documentation it should:

Return the current network info for a given network interface.

However, when used it seems to return the correct SSID (readable network name) but a garbage BSSID(the MAC address of the Wireless Access Point). I have tried this connected to multiple different networks with two different iPads and the results are the same.

On my home network, the function returns:

{ BSSID = "0:19:db:8:5c:cc"; SSID = "Das Boot"开发者_如何学JAVA; SSIDDATA = <44617320 426f6f74>; }

In reality, the BSSID of my router is 0:4:ed:66:81:xx where the xx definitely is not cc

Does anyone have experience using this function and have I missed something obvious (more likely) or is this an Apple bug (much less likely) ?

Any input is greatly appreciated,

Nicke.