I cannot block LAN netbios broadcasts on a fedora core 2 Iptables box being used as an IDS. It is therefore being 99% flooded with broadcasts. I've tried: iptables -A INPUT -p UDP --dport 137 -j DROP iptables -A INPUT -p UDP --dport 137 -s 0/0 -j DROP iptables -A INPUT -p UDP --dport 137 -s 192.168.0.0/24 -j DROP Nothing prevents them from getting through. Is there anyway to do this? If possible can someone email me direct at realcucumber@xxxxxxxxxxx Thanks for any help in advance. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com