Hi. I'm configuring the radius server so that no duplicate Calling-Station-Id values are found in the DB I'm logging to (Oracle), which is the only destination I'm logging onto (not even "detail"). The quickest way I thought of was to add a unique index to the RADACCT table so that any Accounting Start for a Calling-Station-Id already present in the DB would fail. Indeed I can see through the server log (started with -X) that the INSERT statement fails because it attempts to violate the unique constraint: ------ rlm_sql (sql): Couldn't insert SQL accounting START record - ORA-00001: unique constraint (RADUSER.RADACCT_IDX2) violated ------ However, just a few lines below I see: ------ modcall[accounting]: module "sql" returns ok for request 0 ------ which probably is the root cause of unexpected (to me): ------ Sending Accounting-Response of id 241 to XXX.XXX.XXX.XXX:33863 ------ This Accounting Response is unexpected to me because RFC 2866 says: "If the RADIUS accounting server is unable to successfully record the accounting packet it MUST NOT send an Accounting-Response acknowledgment to the client". Any help ? Thanks in advance Giuseppe P.S. Here there's the whole log section related to the request processing that raises the above issue: --------- rad_recv: Accounting-Request packet from host XXX.XXX.XXX.XX:33863, id=241, length=92 User-Name = "testuser" User-Password = "\001\272O\257UN\214\307\245\333%\261 <\020d" Acct-Status-Type = Start Calling-Station-Id = "393480000000" Framed-IP-Address = XXX.XXX.XXX.XX Acct-Session-Id = "c16a444a16927797" Processing the preacct section of radiusd.conf modcall: entering group preacct for request 0 modcall[preacct]: module "preprocess" returns noop for request 0 rlm_acct_unique: WARNING: Attribute NAS-Port was not found in request, unique ID MAY be inconsistent rlm_acct_unique: Hashing ',Client-IP-Address = XXX.XXX.XXX.XXX,NAS-IP-Address = XXX.XXX.XXX.XXX,Acct-Session-Id = "c16a444a16927797",User-Name = "testuser"' rlm_acct_unique: Acct-Unique-Session-ID = "aecc66663df0011c". modcall[preacct]: module "acct_unique" returns ok for request 0 rlm_realm: No '@' in User-Name = "testuser", looking up realm NULL rlm_realm: No such realm "NULL" modcall[preacct]: module "suffix" returns noop for request 0 modcall[preacct]: module "files" returns noop for request 0 modcall: group preacct returns ok for request 0 Processing the accounting section of radiusd.conf modcall: entering group accounting for request 0 radius_xlat: 'testuser' rlm_sql (sql): sql_set_user escaped user --> 'testuser' radius_xlat: 'INSERT into radacct (RadAcctId, AcctSessionId, AcctUniqueId, UserName, Realm, NASIPAddress, NASPortId, NASPortType, AcctStartTime, AcctStopTime, AcctSessionTime, AcctAuthentic, ConnectInfo_start, ConnectInfo_stop, AcctInputOctets, AcctOutputOctets, CalledStationId, CallingStationId, AcctTerminateCause, ServiceType, FramedProtocol, FramedIPAddress, AcctStartDelay, AcctStopDelay) values('', 'c16a444a16927797', 'aecc66663df0011c', 'testuser', '', 'XXX.XXX.XXX.XXX', '', '', TO_DATE('2005-09-28 19:46:43','yyyy-mm-dd hh24:mi:ss'), NULL, '0', '', '', '', '0', '0', '', '393480000000', '', '', '', 'XXX.XXX.XXX.XXX', '', '0')' radius_xlat: '/usr/local/var/log/radius/sqltrace.sql' rlm_sql (sql): Reserving sql socket id: 4 INSERT into radacct (RadAcctId, AcctSessionId, AcctUniqueId, UserName, Realm, NASIPAddress, NASPortId, NASPortType, AcctStartTime, AcctStopTime, AcctSessionTime, AcctAuthentic, ConnectInfo_start, ConnectInfo_stop, AcctInputOctets, AcctOutputOctets, CalledStationId, CallingStationId, AcctTerminateCause, ServiceType, FramedProtocol, FramedIPAddress, AcctStartDelay, AcctStopDelay) values('', 'c16a444a16927797', 'aecc66663df0011c', 'testuser', '', 'XXX.XXX.XXX.XXX', '', '', TO_DATE('2005-09-28 19:46:43','yyyy-mm-dd hh24:mi:ss'), NULL, '0', '', '', '', '0', '0', '', '393480000000', '', '', '', 'XXX.XXX.XXX.XXX', '', '0') rlm_sql_oracle: execute query failed in sql_query: ORA-00001: unique constraint (RADUSER.RADACCT_IDX2) violated rlm_sql (sql): Attempting to connect rlm_sql_oracle #4 rlm_sql (sql): Connected new DB handle, #4 INSERT into radacct (RadAcctId, AcctSessionId, AcctUniqueId, UserName, Realm, NASIPAddress, NASPortId, NASPortType, AcctStartTime, AcctStopTime, AcctSessionTime, AcctAuthentic, ConnectInfo_start, ConnectInfo_stop, AcctInputOctets, AcctOutputOctets, CalledStationId, CallingStationId, AcctTerminateCause, ServiceType, FramedProtocol, FramedIPAddress, AcctStartDelay, AcctStopDelay) values('', 'c16a444a16927797', 'aecc66663df0011c', 'testuser', '', 'XXX.XXX.XXX.XXX', '', '', TO_DATE('2005-09-28 19:46:43','yyyy-mm-dd hh24:mi:ss'), NULL, '0', '', '', '', '0', '0', '', '393480000000', '', '', '', 'XXX.XXX.XXX.XX', '', '0') rlm_sql_oracle: execute query failed in sql_query: ORA-00001: unique constraint (RADUSER.RADACCT_IDX2) violated rlm_sql (sql): failed after re-connect rlm_sql (sql): Couldn't insert SQL accounting START record - ORA-00001: unique constraint (RADUSER.RADACCT_IDX2) violated radius_xlat: '' radius_xlat: '/usr/local/var/log/radius/sqltrace.sql' rlm_sql (sql): Released sql socket id: 4 modcall[accounting]: module "sql" returns ok for request 0 modcall: group accounting returns ok for request 0 Sending Accounting-Response of id 241 to XXX.XXX.XXX.XX:33863 Finished request 0 Going to the next request --- Walking the entire request list --- Cleaning up request 0 ID 241 with timestamp 433b0133 Nothing to do. Sleeping until we see a request. -------------