An EAP identities only apply to 802.1X, so yes. Supplicants are not designed to 
be configured by end users. How this data gets configured is irrelevant to the 
conversation.

tim

From: Alan DeKok <[email protected]>
Date: Tuesday, August 3, 2021 at 10:50
To: Tim Cappalli <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: [Emu] Identities and draft-ietf-emu-tls-eap-types-03
On Aug 3, 2021, at 10:01 AM, Tim Cappalli <[email protected]> wrote:
> I fail to understand why this is "a terrible idea". Many organizations, 
> including EDUs have multiple TLDs that are used for sign-in. Cloud IdPs 
> require a fully qualified username.

  Sure.  It's good to see the NAI recommendations of RFC 7542 being more widely 
adopted.  :)

  My question though is this a use-case for 802.1X?  Are users really capable 
now of entering one identity for the outer routing, and a completely different 
one for the inner one?  Or do the users use MDM to do it?

  I haven't seen wide-spread use of different realms in EAP, but maybe I'm not 
talking to the right people.

> I don't think there should be any text on this topic.

  I think it's useful to give guidance on pros/cons of this issue.  If using 
different inner/outer realms is a common practice, then it would be good to 
explain when that's used, and why.

  Alan DeKok.
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