[Bug 286122] ipfw in-kernel nat log not working as expected

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286122

            Bug ID: 286122
           Summary: ipfw in-kernel nat log not working as expected
           Product: Base System
           Version: 14.2-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: darren.henderson@gmail.com

Using ipfw with in-kernel nat gives unexpected results when trying to look at
the nat log.

Invoke nat - "ipfw nat 1 config log if igc0 same_ports unreg_only". We will
also do a second one "ipfw nat2 config log if igc1"

We let things run for a while and then try to look at the log - "ipfw nat 1
show log" we get:

ipfw: unknown redir mode
ipfw nat 1 config if igc0 log same_ports unreg_only

Now if we try "ipfw nat show log" we get the expected results.

nat 1: icmp=2, udp=16, tcp=260, sctp=0, pptp=0, proto=1, frag_id=0 frag_ptr=0 /
tot=279

Now "ipfw nat show config", "ipfw nat 1 show config" and "ipfw nat 2 show
config" all work as expected, without specifying which nat it shows the config
for both. If you specify 1 or 2 it shows the correct config.

I would expect "ipfw nat show log", "ipfw nat 1 show log" and "ipfw nat 2 show
log" to work in the same fashion. Without the specific nat specified show stats
for all instances or show the result for the indicated instance.

Hardly an earth shattering issue but it would be nice if it were consistent.

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