I've tried to solved most of my question/checked for requirements by looking through the manual of the SA520 but I'm still left with some things that I can't confirm.
I have the requirement that I need to filter content on a per user bases. - some just need to be able to access externally hosted e-mail others actually need internet access to do their jobs. Is this possible using the SA520(or 540) and what would be the recommended setup?
With regards to content filtering am I correct to assume that using an ip directly to surf is blocked given that content filtering is enabled?
An other unrelated question that I have involves Load balancing:
Given that I have dual wan setup as load balancing and say bound all voice data to link B and other data to A - should link B fail does the data, of the category thats specifically bound to B, fail over to A. If so does this also work the other way around, and do I have any control over it? Given B is a (relatively) small line should all data from A be redirected to B it might compromise the voice data on B. Though thinking about it; the latter might not be a problem given that QoS is setup properly.