Date: Tue, 20 Aug 2002 17:56:59 +1000 (EST) From: Steve Baxter <steve@pipenetworks.com> To: <vtun-users-admin@lists.sourceforge.net>, <freebsd-net@freebsd.org> Subject: FreeBSD, netgraph, vtun, bridging and other tall tales Message-ID: <Pine.LNX.4.33.0208201739581.20299-100000@internal.pipenetworks.com>
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[apologies, I cross posted this to the freebsd networking list as well]
Hello,
I am using vtun for bridging Ethernet using FreeBSD 4.5-RELEASE, vtun2.4
as distributed in the FreeBSD ports.
I am presently using the software along with the script supplied with
Netgrpaph in FreeBSD - /usr/share/examples/netgraph/ether.bridge
IP NETWORK
_-----------_
/ \
/ \_
/ \
/ \
+-----------+ +-----------+
| VTUN BOX 1| | VTUN BOX 2|
+-----------+ +-----------+
| |
| |
| |
| |
| |
| |
| |
LAN |
LAN
I run a vtun tunnel between box 1 and box two and it works very very well
:-). Each box has two ethernet cards, one for the IP network and one for
the LAN. Each box has a single bridge set up that bridges the tap device
and the LAN facing Ethernet card.
What I was wondering is it possible to do the following :
|LAN
|
|
+-----------+
____/| VTUN BOX 3|
______/ +-----------+
____/
IP NETWORK
_-----------_
/ \
/ \_
/ \
/ \
+-----------+ +-----------+
| VTUN BOX 1| | VTUN BOX 2|
+-----------+ +-----------+
| |
| |
| |
| |
| |
| |
| |
LAN |
LAN
We want to be able to bridge in box 3 three to vtun box 2.
Has anybody tried this where on vtun box 2 we would have to have a second
netgraph bridge that shared a physical interface with another netgraph
bridge ?
1st netgraph bridge:
====================
tap0 rl0
2nd netgraph bridge:
===================
tap1 rl0
Will this produce any issues with netgraph or vtun that anybody is aware
of ?
--
Stephen Baxter
Director - PIPE Networks
phone : 07 3220 1100/ 0417 818 695
fax : 07 3220 1800
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