Log files filling up.

[Chris West]

What do the following mean and how do I stop them?   Error: Ignoring request from client <RAS IP:1646> with unknown code 33 Error: rlm_sql: Stop packet with zero session length. (user ‘’, nas ‘<my_nas_ip>’)   I am running freeradius 0.3 and my RAS are all ascend/lucent TNT and Max’s   Thanks Chris