Here is a basic list of the Citrix Xenapp default ports for version 6 and 6.5 always handy to have for poking holes in firewalls etc.
Licencing Server
Management console 8082
Licencing service 27000 – 27009
Xenapp Server
Unsecured ICA connections 1494
Secured ICA connections (session reliability) 2598
Server to server IMA communications 2512
Access gateway
Client connections are initiated on standard ssl port 443.
Author: Dale Scriven