How to send disconnect message to the NAS?

[Xin]

Btw, what' the mean of the sql in the following script:
  if(...){
    sql        (here)
  }
I got it from http://wiki.freeradius.org/modules/Rlm_sql

-----Original Message-----
From: freeradius-users-bounces+knightluffy=live.com at lists.freeradius.org
[mailto:freeradius-users-bounces+knightluffy=live.com at lists.freeradius.org]
On Behalf Of Alan DeKok
Sent: Saturday, September 27, 2014 9:39 PM
To: FreeRadius users mailing list
Subject: Re: How to send disconnect message to the NAS?

Xin wrote:
> I have fully read the document you specified. I see I can use "update coa"
> section in order to send the disconnect packet, but my question is: 
> the traffic data are stored in MySQL, Can I write a SQL statement in 
> "originate-coa" file in order to get the user who has ran out of data 
> and he can send the disconnect message.

  The username is in the accounting packet.  Do this in the "accounting"
section:

	update disconnect {
		User-Name = "%{request:User-Name}"

	}

  Alan DeKok.
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