Re: draft-ietf-nat-protocol-complications-02.txt

[David R. Conrad]

Keith,

> a 92.55% reliability rate is not exactly impressive, at least not in
> a favorable sense.
> 
> it might be tolerable if a failure of the PTR lookup doesn't cause
> the application to fail. 

If people's livelihood depends on something, they're more likely to insure it
actually works.  Very little depends on PTR records doing anything (with a
relatively few exceptions of sites that configure it otherwise).  The fact
that Bill's getting a 92.55% reliability figure for something that the vast
majority of people use to get something other than IP addresses in logfiles is
actually surprisingly good.

> if applications were
> written to depend on DNS reverse lookups in order to get endpoint
> identifiers of their peers, they would only work as reliably as DNS,
> which isn't very good.

If it "isn't very good", try using the Internet without it for a bit.

In your view, what is it in the DNS protocol(s) that results in a lack of
reliability?

Rgds,
-drc