[Bug 233196] Netstat shows zero counters for aliases IP addresses

Tue Nov 13 13:05:59 UTC 2018

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233196

Bjoern A. Zeeb <bz at FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Hardware|amd64                       |Any
          Component|bin                         |kern
           Assignee|bugs at FreeBSD.org            |net at FreeBSD.org
                 CC|                            |bz at FreeBSD.org

--- Comment #1 from Bjoern A. Zeeb <bz at FreeBSD.org> ---
It was never implemented for IPv4.
In IPv6 it's been done right from the start.

I think this patch (probably for FreeBSD 9) was supposed to improve the
situation for IPv4, but nobody ever did the performance evaluation as it's an
extra loop over all interface addresses:
https://people.freebsd.org/~bz/20100816-01-in_ifawithifp-legacy-o-counters.diff

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