Can IP addresses be partially wildcarded w/ `ipfstat -t'?

	I'm running...

 ipf: IP Filter: v4.1.29 (396)
 Kernel: IP Filter: v4.1.29
 Running: yes
 Log Flags: 0 = none set
 Default: pass all, Logging: available
 Active list: 0
 Feature mask: 0x10e

...under NetBSD 5.1 release i386.  I was wondering if there's a way to
partially wildcard an IP address specified with -D or -S as options to
`ipfstat -t'?  For example, this will tell me about SSH connections:

                          ipfstat -t -P tcp -D any,22

What if I'm only interested in such traffic coming from a particular subnet?
-D/-S doesn't seem to accept CIDRs and/or <addr/mask>.  The following kinds
of queries would be helpful:

               ipfstat -t -P tcp -S 192.168.2.0/24,any -D any,22

                  ipfstat -t -P tcp -S 10.2.*.*.any -D any,22

         ipfstat -t -P tcp -S 172.16.4.0/255.255.255.240,any -D any,22

...Maybe in ipf v5.11?

	Also, is the only way to reset the state statistics reported by
`ipstat' or `ipstat -s' to reboot?

Regards,
Mike