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Let me be honest. You don't know ANYTHING about Debian except adding a user, change password, install packages etc. I have this Debian with KVM and using virt-manager.

My server has this IP:

I have these two IP's for my two guests (Windows):


I have found this simple guide: http://blog.elsobrino.org/2008/03/08/howto-setup-a-network-bridge-under-debian/

But the server is unreachable whenever i reboot after inserting the data for bridge0 (br0).

I would be very happy if you guys could point me in the right direction. Please, if you need anymore information, please let me know!

Thanks in advance!



# Loopback device:
auto lo
iface lo inet loopback

# device: eth0
auto  eth0
iface eth0 inet static

# default route to access subnet
up route add -net netmask gw eth0

brctl show


ip addr list

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNO                                                                                                                                                             WN qlen 1000
    link/ether 40:61:86:2b:83:d2 brd ff:ff:ff:ff:ff:ff
    inet brd scope global eth0
    inet6 fe80::4261:86ff:fe2b:83d2/64 scope link
       valid_lft forever preferred_lft forever

ip route show via dev eth0 dev eth0  proto kernel  scope link  src
default via dev eth0
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Contents of /etc/network/interfaces, output of brctl show, ip addr list, ip route show. –  womble Nov 10 '09 at 11:55
Thanks, Womble. I've updated the question according to your requests :) –  Kordonme Nov 10 '09 at 12:24
There's no bridge configuration given. –  womble Nov 10 '09 at 16:06
No - that's my whole problem. Each Tine i configurere one, I'm losing my connection to the server. I'm probably doing it wrong. That's why I want help to set up a bridge :) –  Kordonme Nov 10 '09 at 17:03
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1 Answer

up vote 2 down vote accepted

This question is being answered here.

The /etc/internet/interfaces ended up like this:

# Loopback device:
auto lo
iface lo inet loopback

# device: eth0
auto eth0
iface eth0 inet manual

# device: br0
auto br0
iface br0 inet static
  address   88.198.xxx.xxx
  broadcast 88.198.xxx.xxx
  gateway   88.198.xxx.xxx
  bridge_ports eth0

# default route to access subnet
up route add -net 88.198.xxx.xxx netmask gw 88.198.xxx.xxx br0
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