How can I setup my new mac laptop to use different IPs depending on which wifi network its connected to? I travel between a few different networks at home and at work, and want to setup my mac to use different ip's at different networks. So far I managed to set it up to use DHCP at work and at my girlfriend's place, but I want to use a static IP when I am at home. If I put in the static ip I want (i.e. 192.168.1.5), it tries to use this ip on all of the networks I'm on, regardless of whether its right or not. Where do I change this so that I can have independent IP settings for each network? Thanks.