Hi,
sorry for this absolute newbie question. I am just experimenting with a simple UEC setup on Ubuntu 10.04. I am in a company network where we don't have a DHCP server and we are not allowed to run one. All IP addresses are given out manually by the administrator. I set up one box as a Node Controller and one box with all the rest, both boxes have fixed IP addresses, see each other and the node controller successfully connects to the cluster. Upon installing the boxes I disabled all DHCP functionality and relied on private addressing. I downloaded an image and registered it in the CC. Starting an instance also worked fine, but it got a private address which does not fit in our company network.
Is it possible to use a particular user-given IP address as the private address when powering up an instance?
Hello,
I'm not sure I undestand your setup: if you are running in MANAGED* mode, the VNET_SUBNET will specify a subnet to be used by the instance, and that subnet does not need to interfere (overlap or be a subste or a superset) with the real subnet you have your machines on. If you don't specify any public ips, then the instance will start only with private addressing, but the instances should be unreachable by any other machines, but the CC.
As per using specific private addresses, there is no way, currently to specify which address to give to instances: eucalyptus will select them for you. I don't think you need this feature: I suspect you may have misconfigured the network, and the instances happen to be on your real subnet with their private IP (which shouldn't happen).
cheers
graziano