Hi! Björn,

On 09 Dec 19 13:45, you wrote to me:

 PQ>> The most advanced piece of FTN software, Radius, used to use it.

 BF>    I've been working a lot with the Radius source code, and I can
 BF> assure you that it does NOT use the INA flag for any useful
 BF> information.

Keep looking.  I sent _many_ off-the-cuff 'direct' netmails to people I'd never
done so in the past, which succeeded when the only address flag was an INA
entry. Imagine my (genuine!) surprise.  I tell you this from first-hand
experience; not hearsay.

 BF>    It tries to resort to that flag if every other internet flag is
 BF> failing (usually failing that too), but then I don't think you can
 BF> call it actually using it?

A fall-through?  And, this is a bad thing?  Really?  8-)

 BF>    Maybe I should ask how many nodes have just the INA flag and no
 BF> other IP related flag?

I am not that sort of Linux whiz.  Wrong guy.

Cheers,
Paul.

... "Too much of a good thing is wonderful", Mae West.
--- GoldED+/LNX 1.1.5-b20130515