--no Problem-- nas1 (localhost) Only one NAS login and logout No problem --Problem-- nas1 (localhost) nas2(remote) Username NASIPAddress CalledStationId CallingStationID expiry_time pool_key user1 127.0.0.1 1xx.2xx.3xx.1 2011-09-19 20:00:00 0 user2 127.0.0.1 1xx.3xx.3xx.2 2011-09-29 20:21:13 10 user3 127.0.0.1 1xx.4xx.3xx.3 2011-09-29 20:21:13 9 user4 127.0.0.1 1xx.5xx.3xx.4 2011-09-29 20:21:13 4 Now time is 2011-09-19 20:00:00 user5 login....... Username NASIPAddress CalledStationId CallingStationID expiry_time pool_key user1 2011-09-19 20:00:00 0 user2 127.0.0.1 1xx.3xx.3xx.2 2011-09-29 20:21:13 10 user3 127.0.0.1 1xx.4xx.3xx.3 2011-09-29 20:21:13 9 user4 127.0.0.1 1xx.5xx.3xx.4 2011-09-29 20:21:13 4 user5 127.0.0.1 1xx.6xx.3xx.5 2011-09-29 20:21:13 0 NASIPAddress,CallingStationID,pool_key is random over time nas1 10 user connect nas2 8 user connect but sqlippool is Username NASIPAddress CalledStationId CallingStationID expiry_time pool_key user1 2011-09-19 20:00:00 0 user2 127.0.0.1 1xx.3xx.3xx.2 2011-09-29 20:21:13 10 user3 127.0.0.1 1xx.4xx.3xx.3 2011-09-29 20:21:13 9 user4 127.0.0.1 1xx.5xx.3xx.4 2011-09-29 20:21:13 4 user5 127.0.0.1 1xx.6xx.3xx.5 2011-09-29 20:21:13 0 user6 2011-09-19 20:00:00 0 user7 2011-09-19 20:00:00 0 user8 2011-09-19 20:00:00 0 user5 127.0.0.1 1xx.9xx.3xx.9 2011-09-29 20:21:13 20 .. .. nas1(localhost) no problem nas1(localhost) + nas2(remote) ==> This problem Help me.