On Sun, Jul 31, 2011 at 12:35:29AM -0400, Chuck Anderson wrote: > On Sat, Jul 30, 2011 at 11:30:30PM -0400, Genes MailLists wrote: > > On 07/30/2011 06:49 PM, Dan Williams wrote: > > > What's unique about the method described there is that the Mac > > > configures the interface with the same IP address it previously had if > > > the lease is still valid, while NetworkManager waits for the DHCP server > > > confirm the lease. So we could presumptuously configure the interface > > > with the previous address from the lease and then only tear it down if > > > the DHCP server fails or rejects the renewal. > > > > Probably best not to do this - as it can lead to duplicate IP's on the > > network - even if briefly - wasn't something like this an issue with > > some smartphones and princeton univ wifi - and led to them banning > > android for whatever version had the problem ? > > No, it cannot lead to duplicate IPs *if the lease is still valid*. If > the client has a cached lease, and the lease has not yet reached > expiry, then the promise that the DHCP server has made to that client > for it to use that IP address for that period of time is still valid > and the client is free to continue use that IP address. Most (broken) domestic routers forget the DHCP leases they gave out after being rebooted. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into Xen guests. http://et.redhat.com/~rjones/virt-p2v -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
