Re: Debian stable on iDRAC-driven hardware

at do you mean by setting up the bridge twice?

Is it about the bridge_* directives? I thought configuration of IPv4 and IPv6 interfaces were independent, thus allowing (and needing) separate configuration.

If you shall not repeat those, that might be the reason why I crashed the network interface altogether...

I also cannot help but notice you use the accept_ra directive. Is not that intended for routers?

Thanks,

---
B. R.

On Fri, Dec 4, 2015 at 1:15 PM, Cyril <mirtouf@mirtouf.net> wrote:

Hi,

Le 03/12/2015 11:57, B.R. a écrit :

Added information:
My server uses iDRAC 6, and I have been told no update is available.
---
*B. R.*

On Thu, Dec 3, 2015 at 11:01 AM, B.R. <reallfqq-debian@yahoo.fr
<mailto:reallfqq-debian@yahoo.fr>> wrote:

Hello,

I own a dedicated server hosted on hardware with an iDRAC (Dell)
middleware.

Fiddling with network configuration (attempting to configure a
bridge with libvirt to replace the current direct physical interface
configuration), I took the host machione down.
The technicians are unable to help me on the software-configuration
level, but they say there are conflict with the current version of
iDRAC and some Linux kernels.

Here is my (redacted) network configuration:
auto lo
iface lo inet loopback

#auto eth0
#iface eth0 inet dhcp

iface eth0 inet manual
auto br0
iface br0 inet dhcp
bridge_ports eth0
bridge_stp on
bridge_maxwait 0
bridge_fd 0

I crashed the machine down when addind the following snippet
(providing IPv6):
#iface br0 inet6 static
# address 2001:***
# netmask 64
# pre-up dhclient -cf /etc/dhcp/dhclient6.conf -pf
/run/dhclient6.eth0.pid -6 -P -v eth0
# pre-down dhclient -x -pf /run/dhclient6.eth0.pid
# bridge_ports eth0
# bridge_stp on
# bridge_maxwait 0
# bridge_fd 0

Note this part worked perfectly well when configured for eth0 as follow:
iface eth0 inet6 static
address 2001:***
netmask 64
pre-up dhclient -cf /etc/dhcp/dhclient6.conf -pf
/run/dhclient6.eth0.pid -6 -P -v eth0

What did I do wrong?
---
*B. R.*

I do not really understand why you set up a bridge twice but I use a rather similar setup for an Online.net hosted server with a dual stack IPv4+IPv6.

As an example, my interfaces file is like this (Xen aware):

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto xenbr0
iface xenbr0 inet static
bridge_ports noregex eth0 regex vif.*
address
netmask 255.255.255.0
network
broadcast
gateway
bridge_maxwait 5
bridge_stp off
bridge_fd 0

iface xenbr0 inet6 static
address 2001:bc8:
netmask 56
accept_ra 2
pre-up sleep 10 # see bug #783387
pre-up dhclient -cf /etc/dhcp/dhclient6.conf -pf /run/dhclient6.xenbr0.pid -6 -P xenbr0
pre-down dhclient -x -pf /run/dhclient6.xenbr0.pid

Hope this helps.

Cyril