Wishlist/Triaged -- We've discussed this on IRC before. It's a little
complicated since NM would need to listen to the packets on the
interface to figure out if it should be authenticating or not, but it's
definitely doable. Just needs someone to do the work.

Writing such a patch would involve listening for EAP messages on the
interface before it's brought up; handling fallback if authentication
fails (e.g. a captive portal that still works for some amounts of
access), and when exactly to start wpasupplicant to handle the actual
EAPOL handshake and all.

Some relevant resources:
http://www.ciscopress.com/articles/article.asp?p=369223&seqNum=3
http://www.netcraftsmen.net/resources/archived-articles/429.html

** Changed in: network-manager (Ubuntu)
       Status: Confirmed => Triaged

** Changed in: network-manager (Ubuntu)
   Importance: Undecided => Wishlist

** Summary changed:

- NetworkManager asks for 802.1x user name and password when there is no 802.1x 
support on switch port
+ Support 802.1x auth requirement detection and fallback

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https://bugs.launchpad.net/bugs/893024

Title:
  Support 802.1x auth requirement detection and fallback

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