I am running pppoe on a mikrotik and masquerading the traffic. However a few of my customers cannot connect to thier https servers. If I give them a static IP and bridge ether1 to ether2 they can get on the site. How can I acomplish this without having to bridge these ports? How can we let thier static IP pass through untouched?
You are probably seeing MTU/MSS problems with your PPPoE users. Search for Path MTU Discovery (PMTUD) and MSS clamping.
–Tom