I'm assuming by "from an external address" you mean not having to go to the CloudPlatform WebUI. I'm not sure that is suppose to work. I know in older versions you could copy the URL from a just launched console session and reuse in another window, but I seem to remember that only worked for a couple of minutes until the token (used for authentication between the management server and cpvm) expired. It may have worked longer from the same browser session (different tab) but I'm not sure.

I'm kind of surprised there isn't a API call to get a valid console session, but I couldn't find one in the docs.

Sorry I couldn't be of more help.

--Mike@Redapt