I think we do need a better description of how things like ip changes in cloudstack. Can someone write this up?
--Alex > -----Original Message----- > From: Alena Prokharchyk [mailto:[email protected]] > Sent: Tuesday, July 24, 2012 9:51 AM > To: [email protected]; Sheng Yang > Subject: Re: will IP assigned to a guest VM(via DHCP) ever expiry or will need > renewal...? > > On 7/24/12 7:53 AM, "Ram Ganesh" <[email protected]> wrote: > > >Hi All, > > > >Would like to know if an IP assigned by CloudStack via its DHCP server > >to a guest VM will ever expire? Or is it ok to assume the IP will be > >assigned to a guest VM as long as it is not destroyed. We are exploring > >means to enhance our load balancer to support DHCP and once we acquire > >an IP we would assign it statically to the load balancer device. Please > >let me know > > > >Thanks, > >Ram > > > > > > > It will not expire in most of the cases - the IP will stick to Vm for the > entire > lifecycle as the cidr for the network doesn't change once its set usually. > > But if external device (Netscaler, Juniper SRX) is used as a provider for the > network, then the cidr for the network is calculated dynamically every time > the network gets shutdown/re-implemented. As the CIDR changes, so do all > the user vms' ips. > > Sheng, please confirm. > > -Alena.
