Error with free radius, as5800, and ascend data types

Hi, We have this radius-reply-attribute in our radius configuration (free-radius): ip in forward tcp est However, when someone dials up to our as5800 it generates this error:

rlm_sql: Failed to create the pair: failed to parse Ascend binary attribute: Unknown string "est " in IP data filter

est seems to be a valid Ascend attribute.. any ideas?