TCP/UDP ports used in MX-ONE are described in chapter "MX-ONE System Planning" table 10.
In multiple LIMs system there is also in use SCTP ( protocol number decimal: 132) - this protocol work on the same layer as TCP/UDP - so it should also be opened between LIMs...
Also in multiple LIMs system should be open few TCP/UDP ports:
LDAP(tcp), DNS(tcp/udp), ssh (tcp).
BR
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maxilee