multi dhcp on same port

Greetings
I have a single Canopy AP plugged into port 2 of a RB 433, port 1 to the WAN.
Problem is, I am trying to do 3 things through that one port.

WAN port - 77.77.77.99
Bridge with Port 2,3 - 10.10.10.1 (I have blocked PPPoE clients from DHCP)

  1. PPPoE (Bridge port) - to Clients using live IP addresses. 77.77.77.x using ARP-Proxy
  2. DHCP (Bridge port) - 10.10.10.x to Canopy subscriber radios
  3. DHCP (?) live IP addresses to a few select clients. 77.77.77.x

I can create the first two without a problem, however adding the 3rd is the problem.
Mikrotik will not allow for 2 DHCP’s on the same port. I have tried adding 3 VLAN’s and assigning DHCP to 2 VLAN’s but that also fails. I have also tried creating multiply bridges with only the appropriate VLAN’s etc etc.

Any ideas would help.

Martin

I am not sure, but maybe dhcp relay could help.
http://wiki.mikrotik.com/wiki/Manual:IP/DHCP_Relay