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31.05.2008 01:13:24
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nickm324
Posts 9
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I have noticed an issue where session records are not being removed when a user disconnects from the NAS and the stop accounting record is sent.
Sometimes the session records stays in the table and has to be manually deleted.
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31.05.2008 10:59:56
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admin
Posts 110
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Hi,
Can you send log entries (from TekRADIUS.log) for such a session?
Thank you,
Yasin KAPLAN
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31.05.2008 13:59:27
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nickm324
Posts 9
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admin wrote:
Hi,
Can you send log entries (from TekRADIUS.log) for such a session?
Thank you,
Yasin KAPLAN
Yea next time it occurs I will send the zipped up copy of the log.
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01.06.2008 00:52:54
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nickm324
Posts 9
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Ok I think the issue is with long strings in the accounting record.
for this user bglover you can see the start record where the session started with this session ID = 489211755.
RadAuth req. from : 24.227.96.202 - 5/31/2008 6:11:46 AM
Size : 201 / 201
Identifier : 151
Attributes :
Calling-Station-Id = 8508592002
Framed-IP-Address = 192.168.1.150
NAS-Port-Type = 0
Called-Station-Id = 6610
User-Name = bgloverdfs
NAS-IP-Address = 192.168.1.5
Ascend-VSA-Xmit-Rate = 31200
Service-Type = 2
Ascend-VSA-Data-Rate = 21600
NAS-Port = 20101
Acct-Session-Id = 489211755
Framed-Protocol = 1
5/31/2008 6:11:46 AM - Authentication successfull for user bgloverdfs
RadAuth reply to : 24.227.96.202 - 5/31/2008 6:11:46 AM
Size : 32
Identifier : 151
Attributes :
Idle-Timeout = 1200
Session-Timeout = 28800
RadAcct req. from : 24.227.96.202 - 5/31/2008 6:11:47 AM
Size : 183 / 183
Identifier : 120
Attributes :
Framed-IP-Address = 192.168.1.150
Acct-Status-Type = Start
Calling-Station-Id = 8508592002
NAS-Port-Type = Async
Acct-Authentic = RADIUS
Called-Station-Id = 6610
User-Name = bgloverdfs
NAS-IP-Address = 192.168.1.5
Framed-Protocol = PPP
Ascend-VSA-Modem-SlotNo = 5
Ascend-VSA-Owner-IP-Addr = 0.0.0.0
NAS-Port = 20101
Ascend-VSA-Modem-PortNo = 6
Acct-Session-Id = 489211755
Acct-Delay-Time = 0
Then here you cans see where an accounting record was sent for max time exceeded but the session table was never cleard and it looks like it was an issue with the string.
And my NAS sent the ACCT record 4 times but the session table was never cleared of this user. Then a little while later the user tried to connect back and was rejected due to simultaneous connections.
But if you look here you can see the statment was terminated because of an issue with the string
I think due to the statement below being terminated the stop record was never accepted and thats why the session was not cleared.
5/31/2008 2:11:48 PM - Debug Message : (Radius Accounting)
String or binary data would be truncated.
The statement has been terminated.
I am sure I can work around this by reducing the length of the string in the dictionary, but it might be better if you were to put a limitation on the lenght of the string allowed in the description of the codes.
I can't include all 4 ACCT STOP records here be cause your forum has a limit of 4000 characters I will email the log to you.
RadAcct req. from : 24.227.96.202 - 5/31/2008 2:11:48 PM
Size : 333 / 333
Identifier : 109
Attributes :
5/31/2008 2:11:48 PM - Debug Message : (Radius Accounting)
String or binary data would be truncated.
The statement has been terminated.
Framed-Protocol = PPP
Ascend-VSA-Connect-Progress = 60
Acct-Authentic = RADIUS
Calling-Station-Id = 8508592002
Called-Station-Id = 6610
Acct-Status-Type = Stop
Ascend-VSA-Disconnect-Cause = Max-Call-Duration-Reached. The call disconnected because the call duration exceeded the maximum amount of time allowed by Max-Call-Duration.
Acct-Input-Octets = 3260655
Ascend-VSA-Pre-Input-Octets = 484
User-Name = bgloverdfs
Ascend-VSA-PreSession-Time = 31
Acct-Input-Packets = 67497
NAS-IP-Address = 192.168.1.5
Ascend-VSA-Data-Rate = 21600
Ascend-VSA-Modem-SlotNo = 5
Ascend-VSA-Pre-Input-Packets = 12
Ascend-VSA-Owner-IP-Addr = 0.0.0.0
Ascend-VSA-Modem-PortNo = 6
Acct-Delay-Time = 0
Ascend-VSA-Pre-Output-Octets = 251
Acct-Output-Octets = 21551318
Ascend-VSA-First-Dest = 224.0.0.22
NAS-Port = 20101
Acct-Output-Packets = 26808
Ascend-VSA-Xmit-Rate = 31200
Acct-Session-Id = 489211755
NAS-Port-Type = Async
Ascend-VSA-Pre-Output-Packets = 12
Acct-Session-Time = 28800
Framed-IP-Address = 192.168.1.150
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01.06.2008 01:21:18
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admin
Posts 110
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Ascend-VSA-Disconnect-Cause attrbiute in RADIUS Accounting stop is uncesssaryly long. Try to shorten it using Dictionary Editor:
Ascend-VSA-Disconnect-Cause = Max-Call-Duration-Reached. The call disconnected because the call duration exceeded the maximum amount of time allowed by Max-Call-Duration.
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01.06.2008 03:37:18
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nickm324
Posts 9
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Yes I already shortened the string, but you may want to put a length restriction in TekManager to prevent anyone esle from entering a string to long.
My string is now just : Max-Call-Duration-Reached.
Will let you know if that resolves the issue completely or not.
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