set block-policy drop
set block-policy return
@0 block return in on lo0 all 
@1 block return in on lo0 inet all 
@2 block return in on lo0 inet6 all 
@3 block in on lo0 all 
@4 block in on lo0 inet all 
@5 block in on lo0 inet6 all 
@6 block return in on lo0 all 
@7 block return in on lo0 inet all 
@8 block return in on lo0 inet6 all