Adding these parameters to the clean-traffic filter causes a
significant extra piece of code to be executed (a separate thread is
started up, which uses libpcap to capture DHCP traffic and learn the
IP address of the guest / test appliance), so let's get some test
coverage on that code.
Signed-off-by: Laine Stump <email@example.com>
Reviewed-by: Daniel P. Berrangé <firstname.lastname@example.org>