Optionally, you can make NetShade work only on certain Network Ports. If your current
network location has multiple ports, i.e. a dialup port, an Airport port, and an
Ethernet port, you can set NetShade to only modify the proxy settings for certain ports.
If you check the box next to "Built-In Ethernet", but leave "Airport" unchecked, any
web traffic over your Built-In Ethernet port will be routed through a proxy, whereas
any traffic going over the Airport will go in the clear.