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Date:      Thu, 17 Oct 2002 22:11:09 +0200
From:      Guy Brand <guybrand@chimie.u-strasbg.fr>
To:        freebsd-net@FreeBSD.ORG
Subject:   No bridge with Ifs and Vlans
Message-ID:  <20021017201109.GQ43318@chimie.u-strasbg.fr>

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  Hi all,


  I'm setting up a 3 NICs bridge using Intel cards under FreeBSD 4.7. The
  trunk has traffic with three different VLAN tags (111,222,800). I have
  802.1q aware switches behind my two internal interfaces and they should
  only get some tagged frames (ipfw use planned to get rid of unwanted
  VLAN traffic) :

                                  ___ fxp1 --- switch1 of VLAN 111,222,800
                                 /
                                /
     VLANs 111,222,800 ===== em0
                                \
                                 \___ fxp2 --- switch2 of VLAN 111


  After bridging the three interfaces (sysctl), a dump at em0 shows all tagged
  frames coming from the trunk but a dump at fxp1 or fxp2 show nothing (dump
  with "tcpdump -nle -i..."), bridge dysfunction ? Setting up VLAN interfaces
  for VLAN ID 111 :

    ifconfig vlan0 vlan 111 vlandev em0
    ifconfig vlan1 vlan 111 vlandev fxp1
    ifconfig vlan2 vlan 111 vlandev fxp2

  and bridging them (vlanX) together doesn't change anything.
  What have I missed ?

-- 
  bug
  sleepless
  

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