Hi everybody, i have a question-issue,

i have a lotus domino server running over oes2, but several times a day the users are having problems cause suddendly the lotus server stop to respond but the service on servers oes is running.
I run a debug on domino and i send it to IBM, and they replayed to me that the problem is that there are many connections on 524 port and all band width is consumed, and the domino server can`t accept connections.
they suggest to configure a secondary ip address to manage 524 port, is that correct?, what would happen if i block traffic over 524 port?, how can i do that?

thanks a lot