Date: Thu, 01 Sep 2011 10:35:20 +0700 From: "Ivan Alexandrovich" <ivsan@ngs.ru> To: freebsd-net@freebsd.org Cc: Kurt Jaeger <lists@opsec.eu> Subject: Re: Subject: ethernet Q-in-Q ? Message-ID: <web-9695190@mx16.intranet.ru>
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[-- Attachment #1 --]
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@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@opsec.eu +49 171 3101372 9 years to go !
[-- Attachment #2 --]
#src/sys/net/if_vlan.c
--- if_vlan.c.orig 2010-12-21 23:09:25.000000000 +0600
+++ if_vlan.c 2011-05-31 23:14:55.000000000 +0700
@@ -665,7 +665,7 @@
/* Check for <etherif>.<vlan> style interface names. */
IFNET_RLOCK_NOSLEEP();
TAILQ_FOREACH(ifp, &V_ifnet, if_link) {
- if (ifp->if_type != IFT_ETHER)
+ if (ifp->if_type != IFT_ETHER && ifp->if_type != IFT_L2VLAN)
continue;
if (strncmp(ifp->if_xname, name, strlen(ifp->if_xname)) != 0)
continue;
@@ -1045,7 +1045,7 @@
/* VID numbers 0x0 and 0xFFF are reserved */
if (tag == 0 || tag == 0xFFF)
return (EINVAL);
- if (p->if_type != IFT_ETHER)
+ if (p->if_type != IFT_ETHER && p->if_type != IFT_L2VLAN)
return (EPROTONOSUPPORT);
if ((p->if_flags & VLAN_IFFLAGS) != VLAN_IFFLAGS)
return (EPROTONOSUPPORT);
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