Re: A Splendid Example Of A Renumbering Disaster

[David Conrad <[e-mail]>]

On Nov 23, 2012, at 5:46 PM, Sabahattin Gucukoglu <[e-mail]> wrote:
> It's Friday.  Time to plug IPv6 some more. :-)
> 
> http://b.logme.in/2012/11/07/changes-to-hamachi-on-november-19th/
> 
> LogMeIn Hamachi is basically a NAT-traversing layer 2 VPN solution.  They avoided conflicts with RFC 1918 space by hijacking IPv4 space in 5/8,

Back when I was running IANA and we noticed this (back in 2006 or so -- don't remember the exact dates), we suggested to the folks at Hamachi that using squat space was perhaps not the best idea.  They floated the idea of a /8 dedicated to VPNs, but it didn't go anywhere (we at IANA told them to bring it up with the IETF -- not sure if they ever did).  

> now actively being allocated by LIRs in Europe.  When that didn't work (see link above), they moved to 25/8, allocated to the UK MoD.  

Sigh.  You would think that after a number of years they could've come up with a better solution than to use different squat space. Given 25/8 is 'legacy' space, unencumbered by registration service agreements, I suspect folks using Hamachi for v4 VPNs will get another unpleasant surprise in the future.

Regards,
-drc