[RADIATOR] Unknown reply received in AuthRADIUS

Jim Tyrrell jim at scusting.com
Thu May 2 00:56:23 CDT 2013


I already have IgnoreAccountingResponse in my AuthBy RADIUS below, is 
that the correct place for it?

Jim.

On 02/05/2013 00:38, Hugh Irvine wrote:
> Hello Jim -
>
> Just add "IgnoreAccountingResponse" to your AuthBy RADIUS clauses.
>
> See section 5.32.30 in the Radiator 4.11 reference manual ("doc/ref.pdf").
>
> regards
>
> Hugh
>
>
> On 2 May 2013, at 04:49, Jim Tyrrell <jim at scusting.com> wrote:
>
>> Hi,
>>
>> I have a default accounting handler which currently formats a few
>> attributes via a hook, updates a MySQL database with session info, and
>> then relays the RADIUS packet onto a couple of Cisco management servers
>> (so they can maintain a mapping of user to IP).
>>
>> We have always had a few "Unknown reply received in AuthRADIUS", but
>> quite rarely and then only a handful at a time so ignored them.  I had
>> assumed it was down to the remote RADIUS replying after Radiator had
>> timed out the request (RetryTimeout 5) and so it was no longer valid -
>> is that a correct assumption?
>>
>> However, I then added another AuthBy between the MySQL update and the
>> RADIUS proxy to update a 2nd MySQL server (that will eventually replace
>> the current MySQL), and now I get floods of "Unknown reply received in
>> AuthRADIUS" approx 10 seconds after starting the RADUS process.  I have
>> 'Retries 2' so 10 seconds would be the time taken before giving up the
>> AuthBy RADIUS.
>>
>> I dont understand why adding in an AuthBy before the AuthBy RADIUS could
>> have an impact?  Even if the new AuthBy is slow, and I dont believe it
>> is as I have seen no timeouts for it, then wouldnt that just delay the
>> RADIUS proxy sending rather than effect its performance?  My accounting
>> handler is as follows:
>>
>> <Handler>
>>      AuthByPolicy ContinueAlways
>>      AccountingHandled
>>      PreProcessingHook file:"%D/scripts/format_attributes.pl"
>>
>> ## Log User session status to MySQL servers via insert/update/delete
>> statements
>>      AuthBy RadiusOnline-Start
>>      AuthBy RadiusOnline-Alive
>>      AuthBy RadiusOnline-Stop
>>
>> ##  NEW AuthBy to log to new MySQL server via stored procedure
>>      AuthBy RadiusSessionUpdate
>>
>> ## Proxy accounting packet to Cisco management server 10.153.253.1
>>      AuthBy Proxy-to-CiscoSM
>>
>> ## Proxy accounting packet to Cisco management server 10.153.253.12
>>      AuthBy Proxy-to-CiscoSM_lab
>>
>> </Handler>
>>
>> The remote RADIUS servers are defined as such:
>> <AuthBy RADIUS>
>>          Identifier Proxy-to-CiscoSM
>>          <Host 10.153.253.1>
>>                  Secret mypassword
>>                  RetryTimeout 5
>>                  Retries 2
>>          </Host>
>>          IgnoreAccountingResponse
>>          NoDefault
>> </AuthBy>
>>
>> The messages I get are:
>> Wed May  1 19:18:53 2013: WARNING: Unknown reply received in AuthRADIUS
>> for request 26 from 10.153.253.1:1646
>> Wed May  1 19:18:53 2013: WARNING: Unknown reply received in AuthRADIUS
>> for request 26 from 10.153.253.12:1646
>> Wed May  1 19:18:53 2013: WARNING: Unknown reply received in AuthRADIUS
>> for request 27 from 10.153.253.1:1646
>> Wed May  1 19:18:53 2013: WARNING: Unknown reply received in AuthRADIUS
>> for request 27 from 10.153.253.12:1646
>> Wed May  1 19:18:54 2013: WARNING: Unknown reply received in AuthRADIUS
>> for request 29 from 10.153.253.1:1646
>>
>> I thought about changing the order of the AuthBy's and tweaking the
>> timeouts but want to try and understand how the additional AuthBy could
>> of resulted in this issue before blindly try other things.  I guess
>> ideally I need to do trace 4 debugs and packet captures to verify delays
>> in the remote RADIUS replying, but the server is very busy and its hard
>> to piece the incoming and outgoing Radius packets together in all the noise.
>>
>> Thanks.
>>
>> Jim.
>>
>> _______________________________________________
>> radiator mailing list
>> radiator at open.com.au
>> http://www.open.com.au/mailman/listinfo/radiator
>
> --
>
> Hugh Irvine
> hugh at open.com.au
>
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