Yep.

```
3.2.2. Server-based Naming Authority

   URL schemes that involve the direct use of an IP-based protocol to a
   specified server on the Internet use a common syntax for the server
   component of the URI's scheme-specific data:

      <userinfo>@<host>:<port>
```

Do we populate this field with the authority? Or the hostname? Using the full authority is almost certainly incorrect because it can include a password.

http://www.ietf.org/rfc/rfc2396.txt