Article number
000002923
Affected Versions
All
Source Hypervisor
All
Target Hypervisor
All

High ports usage in VRA-VRA communication

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Summary

All ports above port 32768 are known as ephemeral ports, which are random ports assigned to the client side of a client-server connection. 
These ephemeral ports are used for Linux DHCP communication and are not needed for replication. 
  An administrator may encounter high ports (e.g 44478/44479/44480) communication when analysing a log communication between source and target VRAs. 

Steps

Being that VRAs are Linux based virtual machines and require DhClient to be active, UDP ports in the 444xx range will appear when performing a security scan. UDP ports in the 444xx range are not required for the VRA functionality and therefore can be blocked by the customer.