netdev - Re: VLAN 1

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Date:	Wed, 01 Feb 2012 18:21:21 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Leonardo Uzcudun <uzcudunl@...oo.it>
Cc:	yao zhao <yao.development@...il.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: VLAN 1 - Native

Le mercredi 01 février 2012 à 16:44 +0000, Leonardo Uzcudun a écrit :
> I'm sorry guys but i'm not understanding. Allow me to ask in a
> different way.
> 
> I've a linux computer with 3 network cards (eth0, eth1 and eth2)
> 
> eth0 is connected to a switch with vlans config.
> eth1 is connected to a network that has VID 1
> eth2 is connected to a network that has VID 101
> 
> I've the following configuration:
> 
> ip addr add 0.0.0.0 dev eth0
> ip link set eth0 up
> ip link add link eth0 name eth0.1 type vlan id 1
> ip link add link eth0 name eth0.101 type vlan id 101
> ip addr add 0.0.0.0 dev eth0.1
> ip addr add 0.0.0.0 dev eth0.101
> ip link set eth0.101 up
> ip link set eth0.1 up
> brctl addbr br_vlan_1
> brctl addbr br_vlan_101
> brctl addif br_vlan_1 eth0.1 eth1
> brctl addif br_vlan_101 eth0.101 eth2
> ip addr add 0.0.0.0 dev br_vlan_1
> ip addr add 0.0.0.0 dev br_vlan_101
> ip link set br_vlan_1 up
> ip link set br_vlan_101 up
> 
> 
> with this setup, the traffic on VID 101 is working fine. The devices
> across the switch and eth2 communicate each other but, the devices on
> VID 1 don't communicate with those connected to eth1
> 
> If I remove eth0.1 and add eth0 to br_vlan_1 i have the opposite
> situation:
> the traffic on VID 101 is NOT working. The devices across the switch
> and eth2 DO NOT communicate each other
> but, the devices on VID 1 communicate with those connected to eth1. Of
> course on br_vlan_1 i'm getting the VID 1 traffic AND the VID 101....


This might work on recent kernels, please try them.

This is netdev list, after all ;)



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