The only other post I could find with a similar problem as I am having, after extensive searching, was this one, which had no answer. http://forum.mikrotik.com/viewtopic.php?f=7&t=7637.
I am trying to work with a similar setup, where I have a RB493AH sitting at the base of our tower, and use it to hand out DHCP to customer routers. I am not worried about static addresses for right now, but rather, I am wondering how to get to the private subnet (10.0.0.0/8) that our radios are addressed on from outside the NAT. When I connect a router to a subscriber radio, and set it for DHCP, it communicates properly with the RB493AH, pulling a private address which NAT's to the public address of the mikrotik. The problem that I am having is that I cannot access the radios which are doing the bridging on the internal side of the RB493AH. Is there a static route I need to add, or a dst-nat solution? I am simply stuck.
Any help or insight would be appreciated.