Yeah, a delay might be needed. Maybe the close socket should be after the
delay, too.
I'll check on my system and see what I get with a delay.
This is a genus idea, Alex, so I hope it works. And I hope it can move to
Windows.
Dar
PS: I hope the coffee shop or hotel does not automatically blacklist your MAC
address.
On Jun 15, 2013, at 4:47 PM, Alex Tweedly wrote:
> Sorry, should have included all that info in case it varies ....
>
> OS X 10.8.4
> LC 6.0.1 (rc1)
> Some random wifi network in a cafe
>
> I did something like
> repeat with i = 1 to 100
> shell ("ping -c 1 10.0.0." & i)
> end repeat
>
>
> 10.0.0.33 was some random machine (i.e. not me) on the same network
> (I suspect a better set up wifi network shouldn't have let me see all of
> them ... ??)
>
> I did an arp -a
> looked to see what machines were there, picked one, deleted its arp entry
> (with sudo arp -d 10.0.0.33), and then tried my code
>
> the arp entry re-appeared with its mac address info - except for one time
> when it was incomplete. So I added the paranoid wait. With that in place, it
> always worked, but I can't swear that the wait made the difference, rather
> than some random event. Couldn't recreate the failure, even without the wait.
>
> Right now I'm on a different (hotel) network, and can't see any other
> devices, so can't try it here.
>
> -- Alex.
>
>
> On 15/06/2013 05:08, Dar Scott wrote:
>> OK, I have been able to remove one entry from the arp table using this:
>>
>> sudo arp -d 10.20.40.50 inscope en0
>>
>> The result does not look good. The mouseUp handler does add an entry to the
>> arp table, but it is marked incomplete instead of having an MAC address. It
>> does the same for a computer that is available or something bogus. Maybe I
>> need to add the paranoid line.
>>
>> Dar
>>
>>
>> On Jun 14, 2013, at 5:24 PM, Dar Scott wrote:
>>
>>> close?
>>> platform?
>>> (looks OK so far on 10.6)
>>>
>>> And suppose I'm from Missouri. How do I know it wasn't already there?
>>>
>>> I tried sudo arp -d -a, but must have done something wrong. I see no
>>> change in arp -a.
>>>
>>> Dar
>>>
>>>
>>> On Jun 14, 2013, at 5:02 PM, Alex Tweedly wrote:
>>>
>>>> It does. I wondered also, so I tried it out before I posted - actual code
>>>> below ...
>>>>
>>>> on mouseup
>>>> open datagram socket to "10.0.0.33:4000" -- NB we don't care if this
>>>> succeeds or not
>>>> put shell("arp -a") into t
>>>> put t
>>>> end mouseup
>>>>
>>>> -- Alex.
>>>>
>>>>
>>>>
>>>>
>
>
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