Echo Effect Help
Hi, I don't know how to explain this problem. Sounds completely crazy. I have a freeRADIUS 2.1.7 (in CentOS 5.5) setup with MySQL backend to be used with dd-wrt chilli. I have tested in three separate line exchanging the location of radius and chilli but in particular line I found out that radius is behaving abnormally, which I called Echo Effect. When radius is put in that particular line, it doesn't respond to the request from chilli on one particular line of the other two lines. For Example: If radius is in Line 1, it processes the request from Line 2 but completely ignores from Line 3. By line I mean three separate DSL lines. If NAS is put inside the same subnet and authenticated locally, 'radacct' table gets about 20+ entries for single account login. Also noticed in debug mode that it is updating accounting information every second, while account intermin interval is set for every minute. After sometime 'radacct' table gets empty and doesn't get updated even if users are still logged in. To check that phenomenon, I left it on with about 10 users logged in. After sometime it crashed. This kind of repetition happens only in that line (with local authentication) but not on other lines. Same experiments done with radius on other two lines does not show any of these symptoms. 1. Does anyone have any experience in this kind of problem before? 2. Regarding the ignoring of request from particular line, does radius have some kind of self defense mechanism by blocking IP? Where to look for the clue? 3. What can trigger account update every second and multiple entry in 'radacct'? Regards Deepak - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
Re: Echo Effect Help
Deepak wrote: When radius is put in that particular line, it doesn't respond to the request from chilli on one particular line of the other two lines. For Example: If radius is in Line 1, it processes the request from Line 2 but completely ignores from Line 3. By line I mean three separate DSL lines. I'm not really sure what that means. If this is a networking issue, it's not a RADIUS problem. If it's a RADIUS issue, debugging mode will tell you what it's doing, and why. If NAS is put inside the same subnet and authenticated locally, 'radacct' table gets about 20+ entries for single account login. Also noticed in debug mode that it is updating accounting information every second, while account intermin interval is set for every minute. Blame the NAS. It's sending the accounting packets. FreeRADIUS just logs what it gets. After sometime 'radacct' table gets empty and doesn't get updated even if users are still logged in. OK... why? Have you tried looking at the logs or debug output? To check that phenomenon, I left it on with about 10 users logged in. After sometime it crashed. This kind of repetition happens only in that line (with local authentication) but not on other lines. Same experiments done with radius on other two lines does not show any of these symptoms. 1. Does anyone have any experience in this kind of problem before? I have no idea. 2. Regarding the ignoring of request from particular line, does radius have some kind of self defense mechanism by blocking IP? Where to look for the clue? Uh... read the clients.conf file. 3. What can trigger account update every second and multiple entry in 'radacct'? Blame the NAS. Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
Re: Echo Effect Help
Blame the NAS. As I said before sounds crazy.. Most probably NAS is to blame. Thanks Deepak - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
