Re: Additional network interfaces in OpenSUSE?

[Bin Li <libin charles gmail com>]

On Sun, Sep 4, 2011 at 3:41 PM, Uwe Geuder
<networkmanagerList-ugeuder snkmail com> wrote:
> If I understood it correctly in Debian/Ubuntu network manager will leave
> additional interfaces defined in /etc/interfaces unmanaged.
>
> So you can combine your "main" internet access managed by networkmanager
> (eth0, wlan0, ppp0 depending on where you are) with "additional" manual
> network setting you might need insided you machine (e.g. for various
> virtual machines you might be running)
>
> Did I understand that corrcectly?
>
> However, in OpenSUSE I cannot see how to achieve anything similar. As
> soon as network manager is enabled, ifup does not work any longer.
>
> From what I see in the source code this is pretty unconditional:
>
> from /usr/src/packages/BUILD/sysconfig-0.74.5/scripts/ifup: (OpenSUSE 11.4)
>
> ---clip---
>
> ######################################################################
> # Check if NetworkManager is running, inform the user and exit
> #
> if [ "$NETWORKMANAGER" = yes ] && ! netcontrol_running ; then
>        if [ "$SCRIPTNAME" != ifdown -a "$INTERFACE" != lo ] ; then
>                mesg "Network interface is managed by the NetworkManager -> skipping"
>                exit $R_NOTIMPL
>        fi
> elif nm_running && [ "$INTERFACE" != lo ] ; then
>        mesg "Network interface is managed by the NetworkManager -> skipping"
>        exit $R_NOTIMPL
> fi
>
> --- clip ---
>
> Hopefully I'm just missing something here.
>
> Often it helps to know what one really wants to achieve, so here it
> goes:
>
> I need a bridge device for Xen. I let network manager take care of the
> internet access (this is a laptop) The straight forward approach putting
> the current "internet" interface chosen by network manager on the bridge
> would require to set the network address & routing to the bridge device
> instead of eth0/wlan0/ppp0. I don't think network manager can handle
> that.
>
> So my idea was to leave the bridge unmanaged from network manager, give
> it a static internal IP address and use ipforward together with NAT to
> connect the bridge with network manager's current "internet"
> interface. However, no it looks in OpenSUSE I cannot even run "ifup br0"
> when network manager is running.
The best way is to use ifup mode in openSUSE, and if you wanna use the NM,
you could try to use 'unmanaged-devices=mac:<hwaddr>;" in NetworkManager.conf.
you can find more with 'man NetworkManager.conf'

> Regards,
>
> Uwe
>
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>


Sincerely Yours,

Bin Li

http://zh.opensuse.org