Re: [afnog] ARIN to allocate from 74/8 & 75/8

[Randy Bush <randy () psg com>]

> > this has probably already been thought-out, but outbound reachability
> > testing *from* the address block to a representative spread of
> > addressing makes much more sense and would be much more indicative of
> > forwarding (versus routing) problems, and would do so with some method
> > and statistical reliability.  presumably that is coming and just
> > hasn't been discussed or carried out yet.
> It's a good idea, but of course that requires someone in the allocated 
> block to have a list of addresses to ping, all over the net.  

as i said privately to someone, a few problems
  o the scale of destinations is far to large.
  o how are you to know what is an important host inside of a
    complex enterprise?  the granularity of routing/filtering
    within sites is not externally visible.
  o many of a large complex enterprise's sources from which it may
    be desirable to test may be in 1918 space.
  o the pingees may not like being pinged.

the goal here was for isps and enterprises who want to be good
citizens to be able to test.

randy