Snap! - Zero Gravity Concerts, Email Image, Thought Decoder, Swing Strategies Spiceworks Originalsįlashback: May 1, 1964: John Kemeny, Mary Keller, and Thomas Kurtz at Dartmouth College introduce the original BASIC programming language (Read more HERE.).A Chromebook's simple and naturally secure environment. All our employees need to do is VPN in using An圜onnect then RDP to their machine. Those of you who remember teasing me a few years back know that I am big into Chromebooks for remote work from home. Chromebook camera - technical and legal question Security.Cisco Systems, Inc Catalyst 2690 star 4.Are the small-business line of Cisco Switches affected by this? SG-500x / SF-500x etc etc.Īny other comments/information would be great - thank you. Is there a way to see what Cisco Switches are affected by this or actually have the ability for IPDT to be enabled? Is it ALL catalyst switches? Does it depend on the image?ĥ. When you have Allen-Bradley Stratix Line Switches (they partnered with Cisco - and these have full Cisco IOS on them) they DISABLE IPDT out of the box by default.Ĥ. I don't understand/know what IPDT does exactly - any light to shed on this?ģ. And all of a sudden, this because an issue and controllers started flashing false duplicate IP address errors (which consequently froze production which is a VERY BIG DEAL). This is a system that has been in place and setup for a "while" (few months now) with no issues. There is an explicit article from Rockwell Automation which I will post below.ġ. When there are Cisco Switches on the network (which is a LOT of networks), there is the potential for a FALSE DUPLICATE IP ADDRESS error that is ultimately caused by IPDT being enabled. Being that these PLCs are connected to heavy and dangerous machinery - this is safety put in place to prevent accidental control of said systems.
If a duplicate IP address is detected (duplicate to the Ethernet Card) it will disable itself and flash a "Duplicate IP Address Issue".
On these PLCs they have Ethernet Cards (ENBTx) that have some "smarts" in them. I do a lot of work with Industrial Networking, in particular Allen-Bradley hardware. Good morning/afternoon/evening/night/whatever-time-it-is-for-you.
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