1[options]
2	logfile = /var/log/knockd.log
3	interface = fxp0
4
5[openSSH]
6	sequence    = 7000,8000,9000
7	seq_timeout = 5
8	command     = /sbin/ipfw -q add pass proto tcp src-ip %IP% dst-port 22
9	tcpflags    = syn
10
11[closeSSH]
12	sequence    = 9000,8000,7000
13	seq_timeout = 5
14	command     = /sbin/ipfw -q delete pass proto tcp src-ip %IP% dst-port 22
15	tcpflags    = syn
16
17