"/ip firewall filter address list
add address=31.13.24.0/21 list=facebook_cdir
add address=31.13.64.0/18 list=facebook_cdir
add address=66.220.144.0/20 list=facebook_cdir
add address=69.63.176.0/20 list=facebook_cdir
add address=69.171.224.0/19 list=facebook_cdir
add address=74.119.76.0/22 list=facebook_cdir
add address=103.4.96.0/22 list=facebook_cdir
add address=173.252.64.0/18 list=facebook_cdir
add address=204.15.20.0/22 list=facebook_cdir
"