From a recent thread https://groups.google.com/forum/#!topic/google-containers/aDdYFLcQxk4 , it looks like we can modify networking.go to do a test of external connectivity which is actually useful :).

The snippet im suggesting we replace ...

resp, err := http.Get("http://google.com")
        if err != nil {
            Failf("Unable to connect/talk to the internet: %v", err)
        }
        if resp.StatusCode != http.StatusOK {
            Failf("Unexpected error code, expected 200, got, %v (%v)", resp.StatusCode, resp)
        }

... in its place, we should write a test w/ a simple pod which pings google FROM INSIDE A CONTAINER and prints "SUCCESS" after its done, then grep for the SUCCESS string.