I work for a small WISP in Canada and we have been using the Mikrotik's for a long time. Right now our E-10 is plugged into the E1 port of the Mikrotik and then E3 is connected to a switch that all our wireless AP's plug into. We are using a static IP setup for our clients at the moment. We have expanded faster then we had predicted and we would now like to switch to a DHCP system instead. I would like to set up a DHCP server on the E2 port and be able to leave the static IP address clients alone and start setting people up on the DHCP server and then convert the static IP people later. Right now E1 and E3 are bridged together and I have created a DHCP server on E2. I am not able to bridge E2 and E1 together though so I'm not sure on where I need to go next with this. I use Winbox mostly to configure the Mikrotik. I have done a lot of searching and reading the manual but unfortunately I may be missing something in how to get this working. For the people that are connecting to the DHCP server I will be setting them on Static after they have associated with the server. Thank you very much in advance for anyone who takes the time to read this and offer help.