Whenever I am working in my office with my laptop, it is connected to the Internet and to my LAN via ethernet cable. Whenever I'm working on my laptop outside of my office, it is wirelessly connected via Airport. I am trying to figure out a way in which I can automate the process of using the same static IP address on my Macbook regardless of whether I'm connected via ethernet or wirelessly via Airport. My goal here is to find some way in which I can automatically have my Macbook switch its network configuration settings (ideally triggered whenever plugging-in (and conversely unplugging) an ethernet cable). Long story short: Plugging in an ethernet cable should result in Airport WiFi connection being disabled, and assigns a static IP address of 10.0.1.xx to my Macbook via it's Ethernet connection. Unplugging the ethernet cable causes the Macbook to switch network profiles so that ethernet connection becomes disabled, and the Airport WiFi network profile then activates (and turns itself on) using the same static IP address of 10.0.1.xx address I'd previously been using with my ethernet... Anyone have any ideas as to how I might be able to accomplish such a task? Any support would be greatly appreciated... Thanks!