Hi there!
Agree with Hugh.
FYI if you using Cisco as5800, it have a problem whereby it send a
duplicate accounting packet.
I already open a ticket with Cisco Tech Support (Case A626356).
WE are using IOS Version 11.3(10)AA1.
The last recommendation by Cisco Tech support is to upgrade to 12.0(7)T.
Make sure that you have 64MB DMM card or 32MB on HMM card, also 128MB DRAM
on router-shelf and 32MB on dial-shelf.
Have not try that yet but will feedback once i find the time to do it.
Cheers!
*************************
Sajari Bin Sarkan *
SingNet Network Support *
*************************
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On Sat, 7 Oct 2000, Hugh Irvine wrote:
>
> Hello Naveed -
>
> On Fri, 06 Oct 2000, Naveed Ilyas wrote:
> >
> > i am a software engineer. i am working on ISP Billing
> > System in a Software Development Company named
> > Advanced Communication located in Islamabad(Pakistan).
> > Our software is implmented with different Radius
> > Servers. There is an ISP named TELENET in
> > Lahore(Pakistan). here we have implmented our billing
> > software with RADIATOR RADIUS. Almost all the things
> > are going well but there is a problem. Sometime it
> > generate multiple sessions of user instead of one
> > session. User's Authentication and accounting is done
> > from Database (MySql). And Due to this problem radius
> > insert multiple instance of a single session with same
> > valeus of almost all fields e,i.
> >
> > Acct-Session-ID
> > Acct-Session-Time
> > Calling-Station-ID
> > NAS-Port
> > Framed-IP-Address
> > User-Name
> > etc.
> >
> > For more detail I am sending you a zip file which
> > contain three files
> >
> > MulltipleSession.log
> > it contains the record of multiple sessions
> >
> > Configuration.cfg
> > it is the configuration file of the Radiator Radius
> >
> > testlog.log
> > it is the log generated by radius in Trace 4 mode
> >
> > Please check out all the files and help me in finding
> > out the exact problem because of which radiator is
> > inserting multiple records of a user with single
> > ssions
> >
>
> Thanks for sending the files.
>
> As far as I can see, Radiator is operating correctly, however the NAS equipment
> seems to be doing strange things. Radiator is receiving accounting requests and
> responding correctly to them immediately, but for some reason the NAS continues
> to resend every 5 seconds. Either the NAS is not receiving the accounting
> response from Radiator or the NAS has some bug that is causing the problem.
>
> I did see two strange things, for the users "pashu" and "wasad". The user
> "pashu" is being rejected by Radiator, but the NAS sends accounting stop
> packets anyway (some NAS's can be configured to do this). However, in spite of
> Radiator sending accounting responses, the NAS continues to resend. The other
> user "wasad" is shown with a NAS-Port-Type of "virtual" and I only see
> accounting requests, no access requests. These accounting requests are also
> replied to immediately by Radiator, but again the NAS keeps resending.
>
> You will notice in all cases that the "Acct-Delay-Time" in the packets
> increases with each retransmission. This is normal behaviour for the radius
> protocol, as the accounting times have to be corrected for the delay in
> retransmission.
>
> BTW - because radius is based on UDP, packets can and do go missing from time
> to time, and the Acct-Delay-Time field is there to indicate to the billing
> software what is happening. As far as Radiator is concerned, it is doing the
> right thing, because the packets are different and so they are written to the
> database. It is up to the billing software to process the accounting records to
> remove duplicate records.
>
> I think you will have to investigate what is happening on the NAS
> equipment to find out why there is a problem there.
>
> hth
>
> Hugh
>
> --
> Radiator: the most portable, flexible and configurable RADIUS server
> anywhere. SQL, proxy, DBM, files, LDAP, NIS+, password, NT, Emerald,
> Platypus, Freeside, Interbiller, TACACS+, PAM, external, etc, etc.
> Available on Unix, Linux, FreeBSD, Windows 95/98/2000, NT, MacOS X.
>
>
>
> ===
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