SEP firewall rule(s) for iTunes AirPlay/Home Sharing
Having a hard time properly configuring firewall rules, in SEP 12.1.2, to allow iTunes AirPlay streaming through Apple TV (on the same network, obviously). Help with specific rule settings would be greatly appreciated. Thanks to all. Here's the details:
iTunes (either 10.7 or 11.0.2) would not connect to Apple TV unless NTP is disabled. Created an app rule for iTunes.exe to allow all traffic, both ways, on all hosts and protocols. Alternatively, tried creating 2 rules based on this: http://www.symantec.com/docs/TECH155340. Not sure I did it correctly, though. Also checked this doc, but didn't notice anything specific: http://support.apple.com/kb/TS1629.
In either instance, the problem is the initial connection to Apple TV, which will not occur unless NTP is disabled and iTunes is re-started. Once the connection is completed, and iTunes is streaming to Apple TV, NTP can be re-enabled and streaming continues without any problems - for about an hour, then NTP has to be disabled again and iTunes re-started.
Here's a screenshot of SEP's Network Activity monitor while it's streaming problem-free (...148 is the PC, ...161 is Apple TV):
Thanks again for any assistance in resolving.