Date: Fri, 2 May 2014 11:34:23 -0700 From: John-Mark Gurney <jmg@funkthat.com> To: =?iso-8859-1?Q?=D6zkan?= KIRIK <ozkan.kirik@gmail.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: VLAN switching on freebsd Message-ID: <20140502183422.GS43976@funkthat.com> In-Reply-To: <CAAcX-AHG2vtykOsrGdXMW8WgJGCdnFZ5pWqynuuON6VYuG%2BCNQ@mail.gmail.com> References: <CAAcX-AHG2vtykOsrGdXMW8WgJGCdnFZ5pWqynuuON6VYuG%2BCNQ@mail.gmail.com>
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zkan KIRIK wrote this message on Fri, May 02, 2014 at 21:04 +0300:
> i need to create a virtual interface that forwards only defined vlan tags.
> Lets talk on a sample scenario :
>
> Assume that VLAN 10, 20, 30, 40 tagged on switch connected to em0 interface.
>
> create ngeth0 and ngeth1. ( i dont need netgraph interface, it can be a any
> virtual interface tap .. etc. )
> i want to see only VLAN 10, 20 tagged on ngeth0
> and VLAN 10, 30, 40 tagged on ngeth1
>
> I tried many ways but no success.
>
> Can you suggest a way to do this?
I'm not familar w/ netgraph, but it looks like you might be able to
do something simlar w/ ng_vlan and ng_bridge? Though bridge could be
replaced w/ one2many, or hub depending upon requirements... Also, is
this purely for snooping traffic? or do you want to be able to pass
traffic both ways?
em0
|
ng_vlan
/ / \ \
10 20 30 40
| | | |
| ng_bridge | |
\ / \ | |
ng_vlan ng_vlan
| |
ngeth0 ngeth1
Not sure if this is exactly what you want, but I think it would...
Though I don't know if you tried this, since you didn't describe
anything you tried...
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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