I've heard of folks having issues with UDP checksum not being generated correctly, and having success by running the command below on the nova compute nodes.
iptables -A POSTROUTING -t mangle -p udp --dport 68 -j CHECKSUM --checksum-fill I'm not sure if this affects the versions you're working with. On Wed, Sep 5, 2012 at 10:41 AM, Anton Haldin <ahal...@griddynamics.com> wrote: > I have the same issue ( kernel 3.5 , guest vm cannot get response from > dnsmasq ) > > > On Fri, Aug 10, 2012 at 7:08 AM, Lorin Hochstein <lo...@nimbisservices.com> > wrote: >> >> >> On Aug 9, 2012, at 3:22 AM, Alessandro Tagliapietra >> <tagliapietra.alessan...@gmail.com> wrote: >> >> > Hello guys, >> > >> > i've just installed kernel 3.4 from Ubuntu kernel PPA archive and after >> > this upgrade VM aren't able to get the DHCP address but with tcpdump i see >> > the request and offer on the network. >> > Someone else experienced this? I've tried also with 3.3, same story. >> > Rolling back to 3.2 and everything works fine. >> > >> >> >> When I had a similar problem the issue turned out to be that I needed to >> configure the NIC on the compute host to be in promiscuous mode, otherwise >> the DHCP response wouldn't make it to the VM. >> >> Lorin >> >> Sent from my iPad >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~openstack >> Post to : openstack@lists.launchpad.net >> Unsubscribe : https://launchpad.net/~openstack >> More help : https://help.launchpad.net/ListHelp > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp