Re: [Xen-users] Need help setting up guest's networking

[Tim Post <tim.post@xxxxxxxxxxx>]

Sorry for the double post, I meant to include this reference link as a
footnote :

http://linux-net.osdl.org/index.php/Bridge#Kernel_Configuration

A great (rest of) the weekend to all :)

Best,
--Tim

On Sun, 2007-04-29 at 10:53 -0500, Yevgeniy Goldberg wrote:
> My physical eth1 is currently unused.
> It may be a good idea for me to use that in association with xen bridge.
> How do I make xen bridge to use eth1 instead of eth0?
> Once I do that, I should be able to assign a local IP to it without  
> loosing Internet connectivity for Dom0.
> Then I will follow the rest of your plan.
> 
> Best regards,
> 
> -Eugene
> On Apr 29, 2007, at 10:45 AM, Tim Post wrote:
> 
> > On Sun, 2007-04-29 at 10:32 -0500, Yevgeniy Goldberg wrote:
> >> Hi Tim,
> >> The guest that has network issues is suppose to use dhcp and that is
> >> the part that is not working.
> >> When I run ifconfig -a on the xen host OS (Dom0) I get the following:
> >
> > Your bridge (xenbr0) does not appear to have an IPV4 address.
> >
> >> xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
> >>           inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
> >>           UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
> >>           RX packets:627484 errors:0 dropped:0 overruns:0 frame:0
> >>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> >>           collisions:0 txqueuelen:0
> >>           RX bytes:29099604 (27.7 Mb)  TX bytes:0 (0.0 b)
> >
> > ... nor does your non-enslaved secondary ethernet device (eth1).
> > Something is telling me you have something wrong with your DHCP
> > configuration.
> >
> > Can you paste anything related to dhcp from syslog on the dhcp server
> > itself?
> >
> > Better yet, for purposes of eliminating Xen as part of this  
> > problem, can
> > you assign a static address and subnet to eth0 (which appears to  
> > become
> > enslaved to xenbr0 via network-bridge), as well as specifying a static
> > IP and subnet from within the dom-u? From your ifconfig dump, it looks
> > like network-bridge is doing its job correctly.
> >
> > Please note, if macs change, you may have to ping outward from within
> > dom-0 (and the dom-u) prior to either being able to see incoming
> > traffic. 4.2.2.2 or 4.2.2.3 are good hosts to ping for this purpose.
> >
> > Best,
> > --Tim
> >
> >
> >
> 
> 
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