I have not been using -ipmatch with my Session object, I just read up on it and realized I should be.

However, will the functionality of -ipmatch still be limited in the case of transferring a link from one pc to another, where both are behind a router that masks their individual ip's and just shows a common one for the location? (like the way your home computer network ip's are not shown to the outside world, just one ip for your router.)