Hi, I am interested to know under what circumstances would an IP address have a username assigned and with most other attributes empty or NULL? e.g *mysql> select * from radippool where username = '10000078e' ; id pool_name framedipaddress nasipaddress calledstationid callingstationid expiry_time username pool_key 3GPP_Imsi 392053, vodafone, 10.26.7.134,,,, NULL, 10000078e, 0, * *mysql> select * from radippool where username = '10000078e' ;* id pool_name framedipaddress nasipaddress calledstationid callingstationid expiry_time username pool_key 3GPP_Imsi 392053 vodafone 10.26.7.134 NULL 10000078e 0 mysql> select count(*) from radippool where expiry_time is NULL and username != '' ; +----------+ | count(*) | +----------+ | 12797 | +----------+ Kind regards, Sophie