See this: http://forum.mikrotik.com/viewtopic.php ... 4&p=320493
RouterOS ignores the OSPF LSA from a loopback address. The workaround is to add static routes for your loopback addresses.
I just installed a 250GS at a client location to utilize the traffic shaping properties; it can be accessed remotely just fine.And when the switch is in a other net behind a vpn. All Other managable switch have a changable gateway and netmask.