ng_vlan(4) on FreeBSD

The text bfb5b07b0cd5, as FreeBSD 7.0-RELEASE, FreeBSD 6.3-RELEASE, FreeBSD 6.2-RELEASE, FreeBSD 6.1-RELEASE, FreeBSD 6.0-RELEASE shipped it.

IEEE 802.1Q VLAN tagging netgraph node type