[AusNOG] Simon Hackett's presentation from Comms Day yesterday - NBN fibre on copper prices

[Christopher Mclean]

This is true. With ribbon fibre it may not be as easy as you have 12 fibres side by side. Unless you strip them out you cannot separate one from another. I guess my point is that copper is by far easier to compromise.  

-----Original Message-----
From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Andrew Jones
Sent: Monday, July 22, 2013 3:21 PM
To: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] Simon Hackett's presentation from Comms Day yesterday - NBN fibre on copper prices

On 22.07.2013 15:11, Karl Auer wrote:
> On Mon, 2013-07-22 at 14:36 +0930, Brad Gould wrote:
>> On 22/07/2013 1:42 PM, Christopher Mclean wrote:
>> > Actually the way the fibre system is done may make it a bit harder
>> to
>> > attack. Can’t ringbark and alligator clip fibre.
>>
>> Actually, you can. Depending on the scenario, you can do it and not 
>> damage/mark the sheath at all.
>
> OK, I'll bite. How do you get light through the sheath of a fibre 
> without damaging or marking it? Or are you stipulating access to the 
> ends or a join?
>
> Regards, K.

 From https://en.wikipedia.org/wiki/Fiber_tapping :
Test equipment can simply put a bend in the fibre and extract sufficient light to identify a fibre or determine if a signal is present.

Presumably if that method can be used for getting light out of the fibre, you could also use it to inject light in. Whether it would be easy to put enough light to cause interference through the sheath is another question.
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