I recently had to upgrade one of my Pix 501 because new users couldn't access the net and discovered that 10 user license limit on the base model. Are the xlates determined by the mac addresses connected to the inside interface ? Most print servers ask if you want to enter a default gateway, if I enter the address of my Pix, will the print server use up one license ? How about remote users from the Internet that connect to a server behind the pix ? Do they take up a license or will only the server take one license ?