added new dryrun directive

dhcp_protect.conf

 # max_pkt_per_interval
 # maximum number of packets authorised per time interval.
-max_pkt_per_interval=1
+max_pkt_per_interval=30
 
 # interval
 # measurement time interval in seconds.
-interval=10
+interval=30
 
 # debug
 # enable debugging, warning, very verbose
 # blacklist_time
 # number of seconds this client will be ignored once
 # it exceeded the max_pkt_per_interval per interval
-blacklist_time=10
+blacklist_time=55
 
 # queue number
 # refers to the queue-num of iptables.
 # -A FORWARD -p udp -m udp --dport 67 -j NFQUEUE --queue-num 67 --queue-bypass
 queue=67
+
+# dryrun
+# if dryrun is set to 1 it will accept all packets no matter what.
+# this can be used for testing, syslog will still display the blacklisting
+# actions.
+# Set to 0 for production.
+dryrun=1