(RADIATOR) Radiusd stops with no warning

[Kevin McKee]

We are having a major problem with our RADIATOR servers today.  We are
running three different Solaris boxes with slightly different RADIUS
installs, but using the same config and all are failing today.
-------------
Box #1
Solaris 9
RADIATOR 3.6
Perl 5.6.1

Radiusd stops with no warning at all after running for less than 30
minutes.  I am running it at Trace 5, and the last thing in the log is a
normal Accounting packet that was sent.  The daemon is started with the
following script:
'/usr/bin/perl -w /usr/local/bin/radiusd  -config_file
/etc/raddb/radius.cfg'
Is there anything I can look at to get more information on why this is
failing?
--------------
Box #2
Solaris 9
RADIATOR 3.6
Perl 5.8

Same symptoms as Box#1
--------------
Box #3
Solaris 8
RADIATOR 3.0
Perl5.6.1

Has been running fine for the past several months, but today it appears
to be getting overloaded and shutting down.  We have 15 downstream ISPs
that use our modems, and the RADIUS packets begin timing out to all of
them at the same time.  I imagine that we are creating a fairly large
backlog of Requests as the NAS boxes keep sending out requests that are
never answered.  Our solution has been to switch the entire system to an
AuthBy TEST, which clear out the backlog of Radius requests, and then
switch back to the normal config.  This keeps it going for another hour,
but then it starts timing out again.  When it times out, all of the
remote Ips are reachable. Here is a sample of the logged problem: 
INFO:AuthRADIUS: No reply after 3 transmissions to X.X.X.X:1812 for
XXXXX (44)
INFO:AuthRADIUS could not find a working host to forward to. Ignoring   
INFO:AuthRADIUS: No reply after 3 transmissions to X.X.X.X:1645 for
XXXXX (211)   
INFO:AuthRADIUS could not find a working host to forward to. Ignoring   
INFO:AuthRADIUS: No reply after 3 transmissions to X.X.X.X:1812 for
XXXXX(208)   
INFO:AuthRADIUS could not find a working host to forward to. Ignoring   
INFO:AuthRADIUS: No reply after 3 transmissions to X.X.X.X:1812 for
XXXXX (19)   
INFO:AuthRADIUS: No reply after 3 transmissions to X.X.X.X:1813 for
XXXXX (36)   
INFO:AuthRADIUS could not find a working host to forward to. Ignoring   
INFO:AuthRADIUS: No reply after 3 transmissions to X.X.X.X:1812 for
XXXXX (436)   

---------------

Any help on these problems is greatly appreciated.


-------------------------        _   _
Kevin McKee, Network Mgr   _ __ | |_(_)
Northwest Telephone, Inc. | '_ \| __| |
Tel: +1 509 661 2000 x112 | | | | |_| |
Fax: +1 509 661 2020      |_| |_|\__|_|

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