Hi, > We have a problem with duplicate sessions on our MikroTik wireless network > with FreeRADIUS when OSPF kicks in: > > Subscription Analysis for u...@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<http://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<http://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<http://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<http://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<http://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<http://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<http://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<http://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.
..unless this is a shameless plug for that product... really? someone advised you to use a product whose only release is unstable beta 0.1 version? Why not eh? why not go for such an untried and low-share product. looking at the feature list i cannot see why it would operate any differently or how it would easily solve your problems. > 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 so, basically, when OSPF kicks in, your routing topology is changing and therefore your client NAS devices apear to be coming from a different location and hence have a different ID - is it is the clients themselves end up operating via a different subnet instead? this isnt a RADIUS problem per-se - more a logical networking issue. you need to look at what things change and why when you have an OSPF issue (I'm not sure what you mean by OSPF 'kicking-in' - in a properly routed network, the routing protocol is ALWAYS active - its just when an event takes place that the routing protocol decides what path should be used. > please assist urgently, this problem is leading to some difficult client > service inquiries. apart from this initial advice, my next bit of advice would be to get a proper support contract for FreeRADIUS is its urgent and you are getting client service inquiries which cause you to query your architecture alan - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
