[VLAN] Header Reordering

Peter Stuge stuge-vlan at cdy.org
Sat Feb 10 20:16:52 PST 2007


On Sat, Feb 10, 2007 at 09:37:04AM -0800, Hazelsnitzel wrote:
> What does "header reordering" mean with regard to 802.1Q?

In practice it means that VLAN interfaces behave 100% like
physical interfaces.

Specifically it makes SOCK_PACKET sockets on VLAN interfaces work.
dhcpd is the common application that uses them.

--8<-- http://www.candelatech.com/~greear/vlan.html
Optional header-reordering, to make the VLAN interface look JUST LIKE
an Ethernet interface. This fixes some problems with DHCPd and
anything else that uses a SOCK_PACKET socket. Default setting is off,
which works for every other protocol I know about, and is slightly
faster.
-->8--


//Peter


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