LISP is a protocol that pops back in the news just when you might have forgot that it existed. It happened again in June when Cisco re-launched LISP for fast mobility at their annual user conference, complete with an on stage demo and much fanfare. While the demo’s are impressive, the history of LISP makes me wonder what is going on behind the curtain. This isn’t the first time that Cisco has proposed LISP for a new use case. In 2011, Cisco positioned LISP as a solution for IPv6 transition and virtual machine mobility, along with VXLAN and OTV, creating a triumvirate of proprietary protocols to further pioneering use cases. But is there real value in LISP?