[EAPEXT] How does eap-sim authentication start from authenticator sending "Identity request" message?

mandar naik <mandarn25@yahoo.co.in> Tue, 24 January 2012 13:37 UTC

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Date: Tue, 24 Jan 2012 19:07:25 +0530
From: mandar naik <mandarn25@yahoo.co.in>
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Subject: [EAPEXT] How does eap-sim authentication start from authenticator sending "Identity request" message?
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Hi,
 I was trying to learn EAP-SIM authentication and I have gone through RFC 4186 which talks about the same.
As per RFC, authentication process starts with" Identity request"from authenticatorbut I had a question that 

how authenticator gets an indication to initiate EAP-SIM process by sending "Identity request"? 

Could anyone explain more about this scenario ?
Thanking in anticipation,


Best Regards, 

Mandar Naik