This is
~/public_html/src/bsd/fixes/FreeBSD/src/gen/sys/netpfil/ipfw/\
ip_fw2.c.REL=12.1-RELEASE.diff
See Also
http://www.berklix.com/~jhs/public_html/src/bsd/fixes/FreeBSD/src/gen/sys/netinet/ipfw/
http://www.berklix.com/~jhs/public_html/src/bsd/fixes/FreeBSD/src/gen/sys/netpfil/ipfw/\
ip_fw2.c.REL=9.2-RELEASE.diff
ip_fw2.c.REL=9.3-RELEASE.diff@ -> ip_fw2.c.REL=9.2-RELEASE.diff
ip_fw2.c.REL=10.4-RELEASE.diff@ -> ip_fw2.c.REL=9.3-RELEASE.diff
ip_fw2.c.REL=11.2-RELEASE.diff@ -> ip_fw2.c.REL=10.4-RELEASE.diff
ip_fw2.c.REL=12.1-RELEASE.diff
ip_fw2.c.REL=12.2-RELEASE.diff@ -> ip_fw2.c.REL=12.1-RELEASE.diff
ip_fw2.c.REL=12.2-STABLE.diff@ -> ip_fw2.c.REL=12.1-RELEASE.diff
ip_fw2.c.REL=12.3-RELEASE.diff@ -> ip_fw2.c.REL=12.2-RELEASE.diff
ip_fw2.c.REL=13.0-RELEASE.diff@ -> ip_fw2.c.REL=12.2-RELEASE.diff
ip_fw2.c.REL=CURRENT.diff
*** 12.1-STABLE/src/sys/netpfil/ipfw/ip_fw2.c Sun Jan 19 13:29:36 2020
--- new-generic/src/sys/netpfil/ipfw/ip_fw2.c Wed Jan 22 02:18:31 2020
***************
*** 3331,3337 ****
first = IS_DEFAULT_VNET(curvnet) ? 1 : 0;
/* First set up some values that are compile time options */
! V_autoinc_step = 100; /* bounded to 1..1000 in add_rule() */
V_fw_deny_unknown_exthdrs = 1;
#ifdef IPFIREWALL_VERBOSE
V_fw_verbose = 1;
--- 3331,3338 ----
first = IS_DEFAULT_VNET(curvnet) ? 1 : 0;
/* First set up some values that are compile time options */
! // V_autoinc_step = 100; /* bounded to 1..1000 in add_rule() */
! V_autoinc_step = 20; /* bounded to 1..1000 in add_rule() */
V_fw_deny_unknown_exthdrs = 1;
#ifdef IPFIREWALL_VERBOSE
V_fw_verbose = 1;