[OSX-Users] Re: iOS 5.0.1 and ecs-wlan?? Re: logging in to one's iPod/iphone with prompt?

Tue Nov 22 12:27:43 GMT 2011

During testing. We tried to write a client to test all the SSIDs however the controller timeouts would mean that you can't simply hop between them. 

Turning the timeouts off (to 0) would be one solution, however then the authentication servers can be spammed and DDOS'd, so we considered it a bad idea.

We assumed that people would not want to switch as both are set up to provide the same level of service.

Not sure on this ECS-WLAN issue yet, however are investigating. 

Dave T

On 22 Nov 2011, at 12:21, dr. m.c. schraefel wrote:

> once more with feeling:
> 
> what should one do then?
> 
> turn OFF wireless entirely on the device and try to reconnect with ECS's lan?
> 
> how long?
> 
> and what to do to force ecs lan to be the first choice? won't eduroam reconnect again automatically?
> 
> by the way that's really fascinating: how did you come up with this find? 
> 
> mc
> 
> 
> On 22 Nov 2011, at 12:18, David Tarrant wrote:
> 
>> The reason this doesn't work is that you are still authenticated with the wireless controller (which manages both eduroam and ECS-WLAN) as a user on one or the other.
>> 
>> In order to stop wireless DDOS, you have to time out on one SSID before you can join the other. 
>> 
>> Continued attempts and the controller will exclude you for a limited time as well. 
>> 
>> Dave T
>> 
>> 
>> On 21 Nov 2011, at 18:02, Hugh C Davis wrote:
>> 
>>> Ah yes!  "Unable to join the network ECS-WLAN". Then I tried twice again
>>> and it worked. Then I had real trouble getting back to eduroam (unable to
>>> join network eduroam). Seems that switching SSIDs is not seamless.
>>> 
>>> Not a problem for me as eduroam is a far superior solution for me - but if
>>> it really needed too be ECS-WLAN then there appear to be issues.
>>> 
>>> /h.
>>> 
>>> ========
>>> Hugh Davis
>>> Room 3045, Building 32, ECS, The University of Southampton, S017 1BJ, UK
>>> Tel:    +44 (0)23 8059 3669    Skpe: skype.hcd
>>> http://users.ecs.soton.ac.uk/hcd/
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> On 21/11/2011 17:33, "dr. m.c. schraefel" <mc at ecs.soton.ac.uk> wrote:
>>> 
>>>> Could you try with ecs-wlan, hugh?
>>>> i can connect to eduroam but not ecs-wlan.
>>>> 
>>>> so - just to make sure...
>>>> 
>>>> thanks
>>>> 
>>>> 
>>>> On 21 Nov 2011, at 17:17, Hugh C Davis wrote:
>>>> 
>>>>> I have not noticed any connectivity problems since the 5.0.1 upgrade. Of
>>>>> course I am connected to eduroam rather than ECS-WLAN but its the same
>>>>> thing at the packets level isn't it?
>>>>> 
>>>>> As Andy says, my BT Router shows the MAC address of all things connected
>>>>> to it.
>>>>> 
>>>>> /h.
>>>>> ========
>>>>> Hugh Davis
>>>>> Room 3045, Building 32, ECS, The University of Southampton, S017 1BJ, UK
>>>>> Tel:    +44 (0)23 8059 3669    Skpe: skype.hcd
>>>>> http://users.ecs.soton.ac.uk/hcd/
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> On 21/11/2011 17:05, "dr. m.c. schraefel" <mc at ecs.soton.ac.uk> wrote:
>>>>> 
>>>>>> Thank you all.
>>>>>> 
>>>>>> let me reframe the question:
>>>>>> 
>>>>>> has anyone with ios 5.0.1 experienced any challenges getting onto
>>>>>> ecs-wlan?
>>>>>> 
>>>>>> just curious if the small upgrade may have done something weird with
>>>>>> the
>>>>>> packets? 
>>>>>> 
>>>>>> On 21 Nov 2011, at 16:45, Steve Harris wrote:
>>>>>> 
>>>>>>> If you have a Mac (or Linux box) on the same network you can correlate
>>>>>>> them using the magic of multicast DNS:
>>>>>>> 
>>>>>>> Find the "name" of your iPhone, in the About page, mine is
>>>>>>> "StevePhone", but most people are more inventive than that :)
>>>>>>> 
>>>>>>> Run: arp -n <phone-name>.local
>>>>>>> 
>>>>>>> arp will print the IP address, and the mac address used to connect to
>>>>>>> it
>>>>>>> 
>>>>>>> e.g.
>>>>>>> 
>>>>>>> $ arp -n StevePhone.local
>>>>>>> ? (192.168.2.145) at 5c:59:48:xx:xx:xx on en1 ifscope [ethernet]
>>>>>>> 
>>>>>>> if you have punctuation in the phone name then it might be a little
>>>>>>> trickier, but you can always temporarily change the name to something
>>>>>>> with just a-z characters and use that.
>>>>>>> 
>>>>>>> - Steve
>>>>>>> 
>>>>>>> On 2011-11-21, at 16:31, Chris Andrews wrote:
>>>>>>> 
>>>>>>>> Then I'm afraid the only way you can check that with ifconfig is to
>>>>>>>> jailbreak your device, install sshd, then ssh to root at 127.0.0.1 with
>>>>>>>> password "alpine", then install ifconfig as well.
>>>>>>>> 
>>>>>>>> Warning: This may leave you open to malware. Plus jailbreaking voids
>>>>>>>> warranty, yadda yadda yadda.
>>>>>>>> 
>>>>>>>> I have never encountered a situation where the MAC in about is not
>>>>>>>> the
>>>>>>>> MAC of the device. However, for verification, you could try the
>>>>>>>> original box it came in, if you still have it. That may have a MAC on
>>>>>>>> it.
>>>>>>>> 
>>>>>>>> Chris
>>>>>>>> 
>>>>>>>> On 21 Nov 2011, at 16:26, dr. m.c. schraefel wrote:
>>>>>>>> 
>>>>>>>>> thank you yes i know where the mac address is: i want to confirm
>>>>>>>>> that
>>>>>>>>> what the about box says it is, is what it is.
>>>>>>>>> 
>>>>>>>>> thanks
>>>>>>>>> 
>>>>>>>>> mc
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> On 21 Nov 2011, at 16:25, Chris Andrews wrote:
>>>>>>>>> 
>>>>>>>>>> You can't SSH into an iDevice unless you've jailbroken it, nor can
>>>>>>>>>> you get a local terminal. The MAC address is in Settings > General
>>>>>>>>>>> 
>>>>>>>>>> About > Wi-Fi Address.
>>>>>>>>>> 
>>>>>>>>>> Chris
>>>>>>>>>> 
>>>>>>>>>> On 21 Nov 2011, at 16:16, dr. m.c. schraefel wrote:
>>>>>>>>>> 
>>>>>>>>>>> i have prompt as a terminal ap.
>>>>>>>>>>> 
>>>>>>>>>>> it always asks for the server, then login and password - so
>>>>>>>>>>> wondering how does one specify their iphone as the server??
>>>>>>>>>>> 
>>>>>>>>>>> with thanks
>>>>>>>>>>> 
>>>>>>>>>>> mc
>>>>>>>>>>> 
>>>>>>>>>>> (why am i doing this? i want to do an ipconfig to confirm the mac
>>>>>>>>>>> address of the device since, having registered the one that shows
>>>>>>>>>>> in
>>>>>>>>>>> about with ecs, it's not connecting - i get an "unable to
>>>>>>>>>>> connect" -
>>>>>>>>>>> that's all i can think is the issue. Thanks)
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>>> 
>>>>> 
>>>>> 
>>>> 
>>> 
>>> 
>> 
>> 
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> 