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Re: [Xen-users] 8th DomU can ping bridge but not internet

To: "Xen users mailing list" <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] 8th DomU can ping bridge but not internet
From: "Peter Braun" <xenware@xxxxxxxxx>
Date: Sun, 27 May 2007 11:24:02 +0200
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New idea:

When bridged networking - is there need for functional IPTables? In
other words - to have working bridgeing do I have to have working
iptables in dom0?

iptables -L
FATAL: Module ip_tables not found.
iptables v1.3.5: can't initialize iptables table `filter': iptables
who? (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.


Peter

2007/5/27, Peter Braun <xenware@xxxxxxxxx>:
2007/5/27, Igor Chubin <igor@xxxxxxx>:
> On Sa, Mai 26, 2007 at 03:42:23 +0200, Peter Braun wrote:
> > Hi,
> >
> > there is gentoo based dom0 with Xen 3.0.4-p1 and some PV guests with
> > various linux distros.
> >
> > We are using bridged networking with one eth0.
> >
> > We have 15 IP adresses with netmask 255.255.255.0.
> > All IPs are using same gateway.
> >
> > Up to now we were adding domU based on our needs w/o problems.
> >
> > Yesterday we wanted to add new Debian based domU but its networking
> > doesnt work properly.
> >
> > This 8th domU comes up ... than we realized that its not possible to
> > ping/ssh 8th from outside world. Ping/ssh from dom0 to 8th domU works.
> > On the other side ping/ssh to other domUs and dom0.
> >
>
> Hello, Peter!
>
> I have faced similar problem.
>
> Try to change MAC-address in 8th domU.
> That solved the problem for me.
>
> --

Hi,

am specyfiing MAC for every DomU. So based on your recommendation I
changed vif for 8th DomU to vif=[ 'ip=x.x.x.x' ] only - without
specifying MAC - situation hasnt changed.

Still not able to create new domU with internet access.

Any other idea?

Peter


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