What is the expected traffic (and why is it generated) between hosts from parent to child domain (and vice versa)? I understand all these ports get hit between the Domain Controllers (https://technet.microsoft.com/en-us/library/dd772723(WS.10).aspx)
however I am also seeing some traffic on ports 389/626/500 between parent domain clients and child DCs. Why would clients be talking that way and is this expected?
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