On 8/4/23 7:22 AM, Lars Eggert via Datatracker wrote:

## Discuss

### Section 4.2, paragraph 4
```
      Consider a SIP-accessible voice-over-IP (VoIP) server at the host
      voice.example.edu servicing SIP addresses of the form
      u...@voice.example.edu and identified by a URI of
      <sip:voice.example.edu>.  A certificate for this service would
      include a URI-ID of sip:voice.example.edu (see [SIP-CERTS]) along
      with a DNS-ID of voice.example.edu.
```
This has got to be the most pedantic Discuss ever,

Somehow I doubt it. :-)

but
AFAICT "example.edu" is not in fact a valid example domain, i.e.,
it's missing from
https://www.iana.org/assignments/special-use-domain-names/special-use-domain-names.xhtml

Six months ago we reached out to IANA about this after our document shepherd noted that IDnits flagged the use of "example.edu" as a problem. IANA's response (written by Kim Davies) was:

###

We operate example.edu in an identical manner to example.com/net/org, in the spirit of RFC 2606 even though it is not one of the specified domains there. I don't think there is a material risk if anyone wishes to use example.edu in the same manner as other example domains.

We should probably look to memorialize that more formally, whether that is in a revised RFC or some other mechanism. It would seem excessive to update the RFC solely for that reason, maybe it can be packaged with other updates at the appropriate time.

###

Therefore we concluded that it was acceptable to use "example.edu" in this document, as we had previously done in RFC 6125 without incident.

Peter

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