Thanks Alena\Sheng\Alex. So it is ok to assume that the IP being used as a static one as long as the network is not shutdown/re-implemented.
Thanks, Ram > -----Original Message----- > From: Sheng Yang [mailto:[email protected]] > Sent: 24 July 2012 23:55 > To: Alena Prokharchyk; [email protected] > Subject: RE: will IP assigned to a guest VM(via DHCP) ever expiry or > will need renewal...? > > Yes. And the reason of recalculating the CIDR of network for external > devices because we allocate the CIDR based on VLAN, which would be > recycled after network shutdown. > > --Sheng > > -----Original Message----- > From: Alena Prokharchyk > 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.
