Subject: ethernet Q-in-Q ?

[Ivan Alexandrovich]

Hi

Here's ugly patch against in 8.2-RELEASE (see attachment) that
makes vlan nesting possible.

  # ifconfig em0.15 create
  # ifconfig em0.15.18 create

Don't know about possible side effects though.
I suppose it doesn't play well wth bridges etc.

With ng_vlan nesting is also possible, but since 8.0
I had to comment out this node name check in ng_ether.c:

      if ((node = ng_name2noderef(NULL, ifp->if_xname)) != NULL) {
              NG_NODE_UNREF(node);
              return;

Best regards,
Ivan

Tue, 30 Aug 2011 15:01:18 +0200 Kurt Jaeger <lists at opsec.eu> wrote:
> Hi!
>
> What about 802.1q VLANs encapsulated in another 802.1q VLAN ?
>
> On FreeBSD 8.1 or 9.0-BETA1:
>
>   ifconfig vlan123 create
>   ifconfig vlan123 vlandev em0 vlan 123
>   ifconfig vlan400 create
>   ifconfig vlan400 vlandev vlan123 vlan 400
> ------
> ifconfig: SIOCSETVLAN: Protocol not supported
> ------
>
> Any ideas ?
>
> --
> pi at opsec.eu            +49 171 3101372                         9 years to go !
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