I'm new to Eagle Light, and really like it.
I would like to define a solid ground plane that accepts only gnd connections, and prevent the autorouter from placing any other signals or traces from cutting across it. How do I do that?
I used a polygon on the bottom layer and named it GND. When I run autorouter, it connects Gnd signals just fine from the Top layer; but it also draws other nets across the bottom layer.
Thank you for your help,