Re: [Qemu-devel] [Bug 577908] Re: qemu 0.12.3 default networking DNS broken

[Stefan Hajnoczi]

On Wed, Dec 29, 2010 at 10:38 AM, Irek Szczesniak
<address@hidden> wrote:
> I got the very same result as you did:
>
> VLAN 0 devices:
>  user.0: net=10.0.2.0, restricted=n
>  e1000.0: model=e1000,macaddr=52:54:00:12:34:56
> Devices not on any VLAN:

In that case QEMU's user networking should provide the DNS server and
gateway addresses.

I captured the network traffic using the following command-line:

$ qemu-system-x86_64 -m 512 -net nic -net user -net
dump,file=/tmp/dump.log -cdrom path/to/rhel.iso
$ wireshark /tmp/dump.log

The DHCP server is providing the DNS server IP address in my case
(Debian qemu 0.12.5+dfsg-3).  Wireshark shows the DHCP Offer/Ack
packet fields and makes it possible to verify that QEMU's DHCP server
is operating as expected.

Can you do the same with the CentOS iso to see if the DNS server IP is
being sent in the DHCP Offer and Ack packets?

Stefan