bin/59801: npf.conf(5) doesn't contain any description of "ipv6-icmp"

[isaki%pastel-flower.jp@localhost]

>Number:         59801
>Category:       bin
>Synopsis:       npf.conf(5) doesn't contain any description of "ipv6-icmp"
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          doc-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Nov 29 02:25:00 +0000 2025
>Originator:     Tetsuya Isaki
>Release:        NetBSD 10.1
>Organization:
>Environment:
NetBSD 10.1_STABLE amd64
>Description:
To allow IPv6 traffic to traverse routers, a rule like
"pass final family inet6 proto ipv6-icmp all" is needed in npf.conf.
However, npf.conf(5) manpage doesn't contain any description of
"ipv6-icmp" keyword.

I have encountered it on NetBSD 10.1, but netbsd-11 appears to have
the same issue.

>How-To-Repeat:
% man npf.conf
or
% cd src/usr.sbin/npf
% grep -r ipv6-icmp

>Fix:
I don't have.