Terminal Server Licensing…. tcp?

I tried to start this discussion from within the article (https://www.techrepublic.com/article.jhtml?id=r00220030224cba01.htm&src=search), but the link errored out… so here it is under Network Admin.

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Hey, this is a great article! I just need to know one thing… the named pipe that terminal servers use to communicate with terminal server license servers… is that encapsulated inside an RPC call? I ask because I’m dealing with IPSec/Firewall issues and I need to know what Ineed to open up so terminal servers can talk to terminal server license servers.

Thanks!