URL to the NWBC HTML

Hi,

I know that the NWBC can be accessed through the t-code NWBC. But I want to access the NWBC HTML through the URL. I have tried accessing through the URL that I got by using the NWBC t-code. But it doesn't seems to be working. It works only when I am logged into to the ECC session, if not it's throwing me the error. Can you please let me know what am I missing here?

Thanks,

Balajii