Hello Alan,
not really - did you read what I wrote? How can you do a state check on what is a stateless protocol?
I think you can still do state checks for UDP: http://www.sns.ias.edu/~jns/wp/2006/01/12/iptables-connection-tracking-udp/ Best Regards, George - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

