freeradius seeing anonymous identity as username

[sebastian buettrich]

hello all,

not really a problem, just a question out of interest:

i m reconfiguring a freeradius server for eduroam and extended use of
rlm_perl for all kinds of fun stuff,


and when testing, i notice that all requests containing an anonymous
identity

@mydomain.org

(regardless of where they come from, a real AP or local eapol_test)

appear to freeradius as User-Name, i.e.

freeradius does not make a difference (?) between 

anon identity
and 
username

is this expected behaviour, the way anonymous identities are
implemented,

or a sign of some misconfiguration, 
e.g. someone trying to take care of something that really should just be
passed on?

it seems to happen before any site configurations are being processed -
see debug output and log below.

it doesnt do any damage .. just wondering.


thanks everybody on the list for sharing,

cheers,

sebastian


======================================================================



output of radiusd -Xx
--------------------------------

Thu Jul 11 10:23:40 2013 : Info: Ready to process requests.
rad_recv: Access-Request packet from host 127.0.0.1 port 39508, id=0,
length=125
	User-Name = "@mydomain.org"
	NAS-IP-Address = 127.0.0.1
	Calling-Station-Id = "CA-FF-EE-00-00"
	Framed-MTU = 1400
	NAS-Port-Type = Wireless-802.11
...
Thu Jul 11 10:23:43 2013 : Info: # Executing section authorize from
file /etc/raddb/sites-enabled/default
Thu Jul 11 10:23:43 2013 : Info: +- entering group authorize {...}
Thu Jul 11 10:23:43 2013 : Info: ++[preprocess] returns ok



log file:
--------------------------------

Thu Jul 11 10:28:37 2013 : Auth: Login OK: [username/<via Auth-Type =
EAP>] (from client local port 0 via TLS tunnel)
Thu Jul 11 10:28:37 2013 : Auth: Login OK: [@mydomain.org/<via Auth-Type
= EAP>] (from client local port 0 cli CA-FF-EE-00-00)