Duplicate Radius data when OSPF Kicks in

[Eugene van der Merwe]

Hi,

We have a problem with duplicate sessions on our MikroTik wireless network
with FreeRADIUS when OSPF kicks in:

Subscription Analysis for user at isp
2010-01-17 up to 2010-01-25
#   logged in   session   time               upload     download   server
             terminate cause   callerid
1   2010-01-23  22:07:31  15 hours           6.9 MB     83.6 MB    *
192.168.199.254*:513   -                 00:0B:6B:DB:A9:96
2   2010-01-22  22:07:30  18 hours           16.2 MB    451.1 MB   *
192.168.208.1*:434     -                 00:0B:6B:DB:A9:96
3   2010-01-22  22:07:29  1 days             27.0 MB    0.6 GB
192.168.199.254:434   Session-Timeout   00:0B:6B:DB:A9:96
4   2010-01-21  22:07:27  1 days             4.7 MB     65.0 MB
192.168.199.254:386   Session-Timeout   00:0B:6B:DB:A9:96
5   2010-01-20  22:07:25  1 days             2.9 MB     45.7 MB
192.168.199.254:331   Session-Timeout   00:0B:6B:DB:A9:96
6   2010-01-19  22:07:23  2 hours            171.3 KB   1.4 MB
192.168.208.1:290     -                 00:0B:6B:DB:A9:96
7   2010-01-19  22:07:23  1 days             2.9 MB     24.5 MB
192.168.199.254:290   Session-Timeout   00:0B:6B:DB:A9:96
8   2010-01-18  22:07:20  1 days, 1 seconds  3.8 MB     66.2 MB
192.168.199.254:207   Session-Timeout   00:0B:6B:DB:A9:96
9   2010-01-17  22:07:15  1 days             1.5 MB     10.0 MB
192.168.199.254:166   Session-Timeout   00:0B:6B:DB:A9:96
10  2010-01-17  22:07:15  0 seconds          0.0 KB     0.0 KB
192.168.208.1:166     -                 00:0B:6B:DB:A9:96

High site 1 is 192.168.199.254 and high site 2 is 192.168.208.1. As you can
see it looks like FreeRADIUS counts the extra data on the dropped connection
as well.

The only suggestion I have received so far is to use a product called
SMRadius (http://www.smradius.org/tiki-index.php?page=Features) that
apparently merges duplicate sessions.

But my FreeRadius installation is 7 years old and I don't want to change to
another product.

We are using FreeRADIUS Version 1.1.7, for host x86_64-pc-linux-gnu (Ubuntu
8.04 64-bit).
mysql  Ver 14.12 Distrib 5.0.51a, for debian-linux-gnu (x86_64) using
readline 5.2

Apart from that we have a pretty stock standard default installation.

I have heard about some other people with large MikroTik networks and OSPF
and FreeRADIUS that they are having the same problem. I have also described
this problem on the MikroTik forum:
http://forum.mikrotik.com/viewtopic.php?f=2&t=38620

please assist urgently, this problem is leading to some difficult client
service inquiries.
--------
Eugene van der Merwe
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