| pass in from 127.0.0.1/32 to 127.0.0.1/32 with opt sec | |
| block in from any to any with not opt sec-class topsecret | |
| block in from any to any with not opt sec-class topsecret,secret | |
| pass in from any to any with opt sec-class topsecret,confid not opt sec-class unclass |