Accessing MDM via Dispatcher

Hi,

We would like to have an access of MDM via dispatcher to access from Internet.

In our landscape i have found 2 MDM server instances (mdmjavxyx.com and mdmcatxyz.com)

and i wold told that one is MDM JAVA Server and another one web browser for MDM.

How to find MSPORT of MDM server to config in Dispatcher ?

Will it be 3901, if the instance number is '00'

Any steps to find needed info about MDM server and configuration in Dispatcher ?

Thanks