My building provides internet access but before you can use it you need to browse to website, from there you are redirected to the buildings router which asks you for a user name and password, after that it allows one MAC on the network (coffee shop/airport style MAC filtering). This setup is a pain. What I'm trying to do is set up an ubuntu based box, that will function as a NAT and bridge my own network with my three computers and my phone onto the buildings network using a single MAC address. The bit I'm stuck on is how to get my NAT box to log in completely autonomously. This has stumped a few people, any ideas?
You can probably do something like this: