[Solved] Two linux bridge guest on a linux host

[oxomichael]

I have a big developpement server (Ubuntu 9.04 64bits) and i want to recreate an network with two server.
I think the bridge mode for networking is the best solution.

I create my two guest (vs01 and vs02) base also on an Ubuntu 9.04

I bridge network for vs01
VBoxManage modifyvm vs01 --nic1 bridge --bridgeadapter eth0
I start vs01, ok all seems right
I shutdown vs01

I bridge network for vs02
VBoxManage modifyvm vs02 --nic1 bridge --bridgeadapter eth0
I think i start vs01 and vs02

And at this time i can't ping network to guest and guest to network

Is it possible to have two guest in bridge mode on the host ?
I don't understand exactly the bridge networking mode

Also on my host i have two ethernet devices

[oxomichael]

I answer to myself
I change the guest interface by the intel pro 1000 T server
I don't remerber what's its name by VBoxManage but it's solve my problem