Error with free radius, as5800, and ascend data types

[Matt]

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?