> -----Original Message----- > From: Murali Reddy [mailto:murali.re...@citrix.com] > Sent: Friday, May 18, 2012 10:16 AM > To: cloudstack-dev@incubator.apache.org > Subject: Re: basic zone for public clouds > > > > > > > > >> When EIP feature is enabled, all tenant instances automatically get a > >> public IP that is 1:1 NAT to their RFC1918 IP. > > > >Is it true for SSVM and CPVM as well? If so, it will be a minor change > >for SSVM and CPVM to hand out the public IP backed by EIP to support the > >feature Murali asks. Otherwise, the public IP/VLAN has to be provided > >inside SSVM/CPVM, while currently SSVM and CPVM do not do that by > default. > > > > I think SSVM, CPVM will have to use public IP backed by EIP model. > Directly assigning public IP to SSVM, CPVM may result them to be > non-routable. For e.g NetScaler that provides EIP/ELB service can be the > only data entry/exit point in a zone and may be setup in two-arm mode[1] > where only NetScaler is in public network. So SSVM/CPVM on the pod's > subnet may not be reachable even if they have public IP. >
This is what I preferred and suggested. When EIP is enabled, SSVM/CPVM just needs to hand out EIP backed public IPs to their clients, no other changes will be needed within existing infrastructure > [1]:http://support.citrix.com/proddocs/topic/netscaler-getting-started- > map- > 91/ns-nw-twoarm-mul-sbnt-con.html
