[Bug 231416] dhcp / dhclient: bad udp checksums if running on a vlan on a Intel I211 interface

[sthaug at nethelp.no]

> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231416
> 
> Eric van Gyzen <vangyzen at FreeBSD.org> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |marius at FreeBSD.org,
>                    |                            |shurd at FreeBSD.org,
>                    |                            |vangyzen at FreeBSD.org
> 
> --- Comment #1 from Eric van Gyzen <vangyzen at FreeBSD.org> ---
> Since it only affects DHCP traffic (bpf injected traffic?), I wonder if it's
> more related to iflib than to igb.  Adding marius@ and shurd at .

I see the same problem when using VLANs on Broadcom BCM5719 and BCM5720
NICs with the bce driver. It's *not* igb specific. Seen on 11.1 and
11.2.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no