8 Jul
2012
8 Jul
'12
3:57 p.m.
On Sun, Jul 8, 2012 at 2:23 PM, Jimmy Hess <mysidia@gmail.com> wrote:
I'm not sure which era exactly in which you consider it legal and kosher to assign to a network, but even if you relax all the rules that require contiguity, it is still an illegal network mask for end hosts, just like 255.255.255.254 is; if an applicant doesn't flag it out as bad/invalid subnet mask in this era, then they might fail the filter,
Well, the correct answer is that it IS invalid (because the real world routers tell us so) and this should be the only acceptable answer, but, just to be sure, /31s are valid, can be used, and are used. -- William McCall