I have been running the ROM since two weeks ago approximately with not many issues but just on local area network. A few days ago I have decided to start using the ROM server through internet side, so with the knowledge that port 4000 was the one needed I routed all tcp and udp to that port ( maybe this uses other protocol so I just selected "all types" for 4000 port to avoid problems ). the thing is that anyone can still connect to my ROM server from outside the LAN and I have even tried other MERC/ROM 1 based MUDs such as SMAUG but it did not work either.
What can it be happening? Thanks in advance, M. 'MiSSigNNo' Camargo

