NetBSD/dist/ipf/test
..
expected
input
regress
bpftest
iptest
ptest
README.TXT
test.format
vfycksum.pl

The contents of this directory sub tree is dedicated to regression testing
of IPFilter.

The tests are broken down into these groups:
f    - filter rule tests
i    - parsing & printing test of ipf rules
in   - parsing & printing test of ipnat rules
ipv6 - ipv6 filter rule tests
l    - logging test
n    - NAT testing
ni   - combined NAT & IPF tests

      TEST
f1  - block/pass, in/out.
f2  - proto
f3  - from IP#
f4  - to #IP
f5  - source port
f6  - destination port
f7  - icmp-type, code
f8  - flags
f9  - ipoptions
f10 - ipoptions
f11 - keep frag/state
f12 - short/frag
f13 - keep frag/state (fragmented packets)
f14 - from !host, to !host
f15 - groups
f16 - skip
f17 - TCP state transition on flags