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Comment: Re:It's not a networking issue. (Score 1) 368

by cusco (#49746269) Attached to: Ask Slashdot: Best Way To Solve a Unique Networking Issue?

MAC addresses are assigned by NIC manufacturers, not the pump manufacturer (and I'll guarantee that a pump manufacturer has no clue how to build a NIC). Every NIC manufacturer has a set range of MAC addresses assigned to them, and each NIC gets its own unique MAC. I can look at a list of MAC addresses connected to a switch and tell you which devices are Lantronix boxes, which are Axis cameras, and which are Mercury access control panels just by looking at the MAC address ranges in use.

Comment: Re:How do you date when a tool was made? (Score 1) 103

by cusco (#49745991) Attached to: Oldest Stone Tools Predate Previous Record Holder By 700,000 Years

The number of people who have no clue how paleontologists and archeologists work but feel completely competent to criticize it never fails to amaze me. If it's this bad on Slashdot then I can only guess how ridiculous it must be on sites like CNN and Faux News.

Comment: Re:How does one tell the difference? (Score 3, Interesting) 103

by cusco (#49745901) Attached to: Oldest Stone Tools Predate Previous Record Holder By 700,000 Years

Tool-making marks are quite distinctive. It's not a process that happens by accident, which is why you don't see naturally-created flint knives laying in riverbeds. If you look with a magnifying glass at a rock that has a sharp edge because it fell against another rock, and a rock that has a sharp edge because a human did it the difference is fairly obvious. Knowing which is which takes practice, of course.

It's unlikely that a "primitive" 60,000 years ago would put an edge on a rock and then bury it in a level deep enough to be mistaken for 3,300,000 years ago, and even less likely that the disturbance of the burial would not be noticed. Even less likely that your phantasmagorical "primitive" would know how to fake the patina of an extra three million years of aging on the worked surface.

You really have no idea how paleontologists and anthropologists work, do you?

Comment: Re:It's not a networking issue. (Score 3, Insightful) 368

by cusco (#49741603) Attached to: Ask Slashdot: Best Way To Solve a Unique Networking Issue?

There is an answer to this, I've done something similar with security devices. Ideally you would use a hub, if you can still find one, rather than a switch. You'll need the MAC addresses of each pump first, well use 00-12-34-56-78-9A and 00-12-34-56-78-9B. Set a fixed IP address on your laptop, for example 172.16.16.16, and turn off your wireless. Open a command prompt as an Administrator and enter:

arp -s 172.16.16.20 00-12-34-56-78-9A

arp -s 172.16.16.21 00-12-34-56-78-9B

Now your laptop thinks that you have pumps at address 172.16.16.20 and 172.16.16.21. Enjoy your extra time!

Comment: Re:It will be closed in a year anyway. (Score 1) 59

by cusco (#49736559) Attached to: Google Offers Cheap Cloud Computing For Low-Priority Tasks

Glass hasn't "cratered hard", just the marketing people misjudged the market sector. It's very much alive and well, and being refocused towards market sectors that are actually interested in its utility, such as medicine, engineering, architecture and spelunking(?). Personally I loathe driving, the day of the self-driving car can't come soon enough for me (although it probably wouldn't let me grossly overload the suspension with landscaping blocks, so I will probably still be stuck driving my truck from time to time.) From "20 years away" in 2010 to 3 or 4 years away now, the advances have been astounding.

Comment: Re:call me skeptical (Score 1) 190

I think you're giving the average citizen far too much credit. They see entire corporate IT systems taken over with dozen keystrokes on TV a dozen times a month, if you asked you might be surprised to find that an awful lot of people would immediately believe that an airplane could be taken over in flight the same way. The reason they don't worry about it is because they don't think about it, it never occurs to them. They never worried about box cutters being a hazard to everyone on a plane until after 911, not because they weren't but because it never occurred to them. A month later most of them were OK with being prohibited from carrying nail clippers.

Comment: Re:bottle opener and laser pointer (Score 1) 278

by cusco (#49701831) Attached to: Ask Slashdot: What's On Your Keychain?

The bottle opener on my key chain helped get me married. Back in the days before every bottle was a twist off I became really popular at some of the fiestas that I went to in Peru. By the time that the Fiesta de la Candelaria came around I was in good enough practice that I could almost keep up with my future in-laws' beer consumption, so was able to hang around long enough to be introduced to the stunning redhead I had seen hanging around.

Where there's a will, there's an Inheritance Tax.

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