e1000 + vlan = connection lost after ifconfig + vlanid + vlandev

John Baldwin jhb at freebsd.org
Mon Nov 29 15:32:36 UTC 2010

On Monday, November 22, 2010 9:09:17 pm Rudolph Sand wrote:
> Hi, I noticed that *something has changed* regarding vlan creation since 8.0-rel and 7.1-rel, compared to 8.1-rel / 7-stable
> When creating a vlan under 8.1-rel (csup'ed the sources yesterday), the box looses all connectivity

Yes, this has to do with changes to the driver to fix bugs in its VLAN
hardware filter.  If you grab the latest 8-stable it should be back to
working fine by default.  If you enable 'vlanhwfilter' via ifconfig you will
loose link when adding or removing vlan's again.

John Baldwin

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