In the past (pre ASLV7) I have defined port ranges (services) for an application, then created a service group if an application used more than 1 service. I then grouped similar applications via packet filter grouping.
Example (Steam aka. counterstike):
Services:
Steam_TCP, TCP, 1:65535 -> 27030:27039
Steam_UDP, UDP, 1:65535 -> 27000:27017
Service Group:
Steam_Platform = Steam_TCP, Steam_UDP
Packet Filter:
Rule, Internal->Steam_Platform->Any, Group = Games
If I follow the examples provided by ASLV7 (Web Surfing, IM, etc). I would put multiple applications into a service group and then put the service group into the packet filter.
Cut to the chase: Is there a difference in the way ASL processes service groups vs. packet filter rules? Does one have improved performance over the other? I doubt it, but I thought I would ask.
Ancillary question: does anyone have another organization method to suggest?
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