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

[Yevgeniy Goldberg <thegoldberg@xxxxxxx>]

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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