i would like to point out, that it starts dnsmasq but it does not listen for dhcp. it listen to dns, even if no dns entries are defined for the network.
# virsh net-dumpxml default
<network>
<name>default</name>
<uuid>ff2d70f9-7613-05fe-7c67-40b2d7f6b0e4</uuid>
<forward mode='nat'/>
<bridge name='virbr0' stp='on' delay='0' />
<mac address='52:54:00:24:08:E3'/>
<ip address='192.168.122.1' netmask='255.255.255.0'>
</ip>
<ip address='192.168.10.0' netmask='255.255.255.0'>
</ip>
<ip address='192.168.20.0' netmask='255.255.255.0'>
</ip>
</network>
# ps -e --format=args | grep dnsmasq
dnsmasq --strict-order --bind-interfaces
--pid-file=/var/run/libvirt/network/default.pid --conf-file= --except-interface
lo --listen-address 192.168.122.1 --listen-address 192.168.10.0
--listen-address 192.168.20.0
# netstat --listen --numeric --tcp --udp --programs | grep dnsmasq
tcp 0 0 192.168.122.1:53 0.0.0.0:* LISTEN
6160/dnsmasq
tcp 0 0 192.168.10.0:53 0.0.0.0:* LISTEN
6160/dnsmasq
tcp 0 0 192.168.20.0:53 0.0.0.0:* LISTEN
6160/dnsmasq
udp 0 0 192.168.122.1:53 0.0.0.0:*
6160/dnsmasq
udp 0 0 192.168.10.0:53 0.0.0.0:*
6160/dnsmasq
udp 0 0 192.168.20.0:53 0.0.0.0:*
6160/dnsmasq
dnsmasq should not start if no dhcp and no dns is defined in network xml
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https://bugs.launchpad.net/bugs/584862
Title:
libvirt launches dnsmasq for non-dhcp networks.
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