Check: http://jyotithakur.wordpress.com/2010/08/22/port-configuration-for-obiee-11g/
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A collection of OBIEE / OBISE stuff from 101 till 404. I just put the things here I run into.
On the OTN forums this picture from the Oracle® Business Intelligence Enterprise Edition Deployment Guide:
It contains the DEFAULT portnumbers used by OBIEE
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