foo = ssh, ftp
bar = other thing
inside = 10.0.0.0/8
@0 block in inet proto udp from 10.0.0.0/8 port = 113 to 12.34.56.78/32 port = 16 keep state 
@0 block in inet proto udp from 10.0.0.0/8 port = 113 to 12.34.56.78/32 port = 6667 keep state 
@0 block in inet proto udp from 10.0.0.0/8 port = 21 to 12.34.56.78/32 port = 16 keep state 
@0 block in inet proto udp from 10.0.0.0/8 port = 21 to 12.34.56.78/32 port = 6667 keep state 
@0 block in inet proto udp from 10.0.0.0/8 port = ssh to 12.34.56.78/32 port = 16 keep state 
@0 block in inet proto udp from 10.0.0.0/8 port = ssh to 12.34.56.78/32 port = 6667 keep state 
@0 block in inet proto udp from 10.0.0.0/8 port = echo to 12.34.56.78/32 port = 16 keep state 
@0 block in inet proto udp from 10.0.0.0/8 port = echo to 12.34.56.78/32 port = 6667 keep state