We have met a problem when we move VM from one subnet to a different
subnet, and the DHCP remembers the previous lease and continues to
provide the same IP address to the VM, even though it is now on a
different subnet.
We have a simple set up where we define two NatNetworks with separate IP
address (10.0.2.0/24 and 10.0.3.0/24) we study behaviour of a router
between these networks. We place an Ubuntu guest on each subnet.
If we place a guest on the first network it is allocated IP address (eg)
10.0.2.4. If we then move it to the second network it continues to
receive an IP address from DHCP of 10.0.2.4, and so cannot function on
the second network.
The workaround is to delete the lease file when VB is not running. We
would prefer the DHCP to properly recognise the subnet of a device and
allocate IP address accordingly.
Regards
Malcolm
--
*Malcolm Clarke *BSc (Hons), PhD
Reader in Telemedicine and Data Communication Systems
T+44 (0) 1895 265053
*Brunel University London*
College of Engineering, Design and Physical Sciences
Department of Computer Science
WBB212, Wilfred Brown Building, Kingston Lane, Uxbridge, Middlesex, UB8 3PH
*www.brunel.ac.uk <http://www.brunel.ac.uk/>*
Connect with the university on*Linkedin, Twitter, Facebook*
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