firewall stuck

[nyoman.bogi at gmail.com]

dear guru,

every time I open my firewall to allow SSH connection from Internet
after few days my firewall always stuck. Stuck in here meaning
that it deny all request (deny any from any).
And after I "ipfw disable firewall" and then "ipfw enable firewall"
everything works fine

when I checked /var/log/messages I found lots of attempts
people try to connect to my machine.
why my machine get stuck when lots of people try to SSH to my machine?

-------------------------------
Bogi Aditya
Sisfo - IMTelkom
http://bogi.blog.imtelkom.ac.id