De makroene vi trenger
webserver = "192.0.2.227"
webports = "{ http, https }"
emailserver = "192.0.2.225"
email = "{ smtp, pop3, imap, imap3, imaps, pop3s }"
nameservers = "{ 192.0.2.221, 192.0.2.223 }"og regler som bruker dem
pass proto tcp from any to $webserver port $webports synproxy state
pass proto tcp from any to $emailserver port $email synproxy state
pass log proto tcp from $emailserver to any port smtp synproxy state
pass inet proto { tcp, udp } from any to $nameservers port domain