Date: Fri, 7 Jun 2002 14:33:51 +0200 From: Christophe Prevotaux <c.prevotaux@hexanet.fr> To: "Vladimir B. " Grebenschikov <vova@sw.ru> Cc: net@freebsd.org Subject: Re: [HELP] IPless VLAN interfaces Message-ID: <20020607143351.6889eb27.c.prevotaux@hexanet.fr> In-Reply-To: <1023451595.531.20.camel@vbook.express.ru> References: <20020606125126.3d44145c.c.prevotaux@hexanet.fr> <1023373804.470.20.camel@vbook.express.ru> <20020607133643.066fcda6.c.prevotaux@hexanet.fr> <1023451595.531.20.camel@vbook.express.ru>
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As I have said before I am using VLAN on FreeBSD ,which is obviously
802.11Q, connected to a switch configured with VLAN 802.11Q ports attached
to the FreeBSD Box on one side thru the ethernet interface of that box.
On the other side on the same swtich I have vlan ports (802.11Q obviously)
which untag packets and deliver them to the boxen behind these VLAN
here is a small picture (I hope this does not gets mangled)
802.11Q
|
--------------+ +--vlan1--+ +-------------+
| FreeBSD Box +- fxp0-+--vlan2--+---Port1-+ Switch +--port4--Host3
--------------+ +--vlan3--+ +---+------+--+ vlan3
| | 802.11Q
port2 port3
vlan1 vlan2
802.11Q 802.11Q
| |
| +---Host2
|
+---- Host1
fxp0 has IP in a /24
vlan1 has no IP
vlan2 has no IP
vlan3 has no IP
Host1 has an IP in the same /24 as the fxp0
Host2 has an IP in the same /24 as the fxp0
Host3 has an IP in the same /24 as the fxp0
802.11Q untagging is done at the port2 , port3 and port4 of the switch
I add route using the "-iface" option of the "route" command in order to
obtain a route that point to each vlan.
All of this works under Linux but not under FreeBSD
I hope this clarifies what I am trying to do
On 07 Jun 2002 16:06:35 +0400
"Vladimir B. "Grebenschikov <vova@sw.ru> wrote:
> Ð_ Fri, 07.06.2002, в 15:36, Christophe Prevotaux напиÑ_ал:
> > All this is very interesting however I don't think this answers my
> > question does it ?
>
> I am a bit not understand for what you have use such strange setup.
>
> And you have not provide enough information, to help you
> I need as minimum
> your network topology (how connected and switche(s), what port in
> trunc(802.1q) mode, what in not trunc)
>
> tcpdump -e on your trunc interface (fxp0) and tcpdump's on your client
> hosts
> while ping one and another direction
>
>
>
> > On 06 Jun 2002 18:30:04 +0400
> > "Vladimir B. " Grebenschikov <vova@sw.ru> wrote:
> >
> > > Ã__ Thu, 06.06.2002, Ã_² 14:51, Christophe Prevotaux Ã_½Ã_°Ã_¿Ã_¸Ã__Ã_°Ã_»:
> > > > Hello
> > > >
> > > > I have a small problem I can't seem to be able to solve on
> > > > FreeBSD 4-STABLE.
> > > >
> > > > I want to setup :
> > > >
> > > > - an interface fxp0 with an IP address with a /24 netmask
> > > > - on this interface fxp0 I set up vlan0 vlan1 vlan2
> > > > - each vlan does not have an IP
> > > > - I setup a route with the -iface option that point to each vlan
> > > > repesctively
> > > >
> > > > on the other side
> > > >
> > > > I setup :
> > > > machines behind each VLAN port
> > > > each machine has an IP with a /24 netmask
> > > >
> > > >
> > > >
> > > > the setup works (ie: freebsd does not complain)
> > > > however pinging a machine does not work so does any other type of
> > > > traffic this does not work under FreeBSD , however when I do the
> > > > same thing with Linux it does work. I believe there must be a way to
> > > > do this under FreeBSD but I can't figure it out.
> > > >
> > > > Could someone help me or tell me what I did wrong ?
> > >
> > >
> > > first try to specify source address to ping
> > >
> > > # ping -S 1.1.1.1 dest
> > >
> > > where 1.1.1.1 - address on fxp0
> > >
> > > and you can set on your vlanX interfaces same addreses ad on your fxp0
> > > with netmask 255.255.255.255
> > >
> > > # ifconfig fxp0 1.1.1.1/24
> > > # ifconfig vlan0 1.1.1.1
> > > # ifconfig vlan1 1.1.1.1
> > > # ifconfig vlan2 1.1.1.1
> > >
> > >
> > > >
> > > > --
> > > > ===============================================================
> > > > Christophe Prevotaux Email: c.prevotaux@hexanet.fr
> > > > HEXANET SARL URL: http://www.hexanet.fr/
> > > > Z.A.C Les Charmilles Tel: +33 (0)3 26 79 30 05
> > > > 3 AllÃ_©e Thierry Sabine Direct: +33 (0)3 26 61 77 72
> > > > BP202 Fax: +33 (0)3 26 79 30 06
> > > > 51686 Reims Cedex 2
> > > > FRANCE HEXANET Network Operation Center
> > > > ===============================================================
> > > >
> > > > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > > > with "unsubscribe freebsd-net" in the body of the message
> > > >
> > > --
> > > Vladimir B. Grebenschikov
> > > vova@sw.ru, SWsoft, Inc.
> > >
> > > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > > with "unsubscribe freebsd-net" in the body of the message
> > >
> >
> >
> > --
> > ===============================================================
> > Christophe Prevotaux Email: c.prevotaux@hexanet.fr
> > HEXANET SARL URL: http://www.hexanet.fr/
> > Z.A.C Les Charmilles Tel: +33 (0)3 26 79 30 05
> > 3 Allée Thierry Sabine Direct: +33 (0)3 26 61 77 72
> > BP202 Fax: +33 (0)3 26 79 30 06
> > 51686 Reims Cedex 2
> > FRANCE HEXANET Network Operation Center
> > ===============================================================
> >
> --
> Vladimir B. Grebenschikov
> vova@sw.ru, SWsoft, Inc.
>
--
===============================================================
Christophe Prevotaux Email: c.prevotaux@hexanet.fr
HEXANET SARL URL: http://www.hexanet.fr/
Z.A.C Les Charmilles Tel: +33 (0)3 26 79 30 05
3 Allée Thierry Sabine Direct: +33 (0)3 26 61 77 72
BP202 Fax: +33 (0)3 26 79 30 06
51686 Reims Cedex 2
FRANCE HEXANET Network Operation Center
===============================================================
To Unsubscribe: send mail to majordomo@FreeBSD.org
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