On 03/08/2011 03:21 PM, jbd wrote:

Hello everybody,

i've defined a simple network, with no dhcp. I'd like to use dnsmasq only as a dns server.

$ virsh net-dumpxml basicswitch <network> <name>basicswitch</name> <uuid>60f491d2-d6c4-6b57-8a50-081cace8dedc</uuid> <forward mode='nat'/> <bridge name='virbr1' stp='on' delay='0' /> <ip address='192.168.100.1' netmask='255.255.255.0'> </ip> </network>

I start it :

$ virsh net-start basicswitch Network basicswitch started

$ virsh net-list Name State Autostart ----------------------------------------- basicswitch active no

But i see no dnsmasq process :

$ ps fax|grep dnsmas[q]

Here the output of "virsh version" :

$ virsh version Compiled against library: libvir 0.8.8 Using library: libvir 0.8.8 Using API: QEMU 0.8.8 Running hypervisor: QEMU 0.12.5

What is funny is that the dnsmasq process is created on another box with different version :

$ virsh version Compiled against library: libvir 0.8.3 Using library: libvir 0.8.3 Using API: QEMU 0.8.3 Running hypervisor: QEMU 0.12.5

$ ps fax|grep dnsmas[q] 7104 ? S 0:00 dnsmasq --strict-order --bind-interfaces --pid-file=/var/run/libvirt/network/basicswitch.pid --conf-file= --listen-address 192.168.100.1 --except-interface lo

Any advice on it ?

Sigh. Yes, there was a regression when I added IPv6 support for virtual networks. I pushed a fix last night. Thanks for the report! https://www.redhat.com/archives/libvir-list/2011-March/msg00584.html commit 7892edc9cc45e4fb1079b627bda3f571ac27041f Author: Laine Stump <laine@laine.org> Date: Fri Mar 11 11:47:58 2011 -0500 network driver: Start dnsmasq even if no dhcp ranges/hosts are specified.