Use Winbox.
Winbox can connect not only by IP but also by MAC.
With it you can assign an IP address to that port, and then you will be able to access it via Webfig (browser).
Not necessarily an issue in your case, but you shouldn’t use VLAN 1, as a general rule of the thumb, as before or later it may create issues, JFYI:
http://forum.mikrotik.com/t/vlan-configuration/176351/1