I successfully installed UEC in one my college lab. I got Eucalyptus login screen. When i login and look for images i am getting an error as "No images found".

When i try to register my private cloud in RightScale i am getting a warring as "The external IP address of your cloud cloud not be recognized. Hence the pre-filled cloud URL may be incorrect. Check your firewall settings. "

The college network is sub-netted and configured with proxy servers. Will this be an issue regarding above said error and warning? Do i need direct IP?