Hi Santhosh,  You can tell ViPR which specific port to use, but TCP/443 is the default communication port used by ViPR to reach the vCenter API.  The port can be specified when you add a vCenter instance to ViPR:  [IMAGE]  I'm not sure why the vCenter port was removed from table 14 of the security guide for 3.5 though.  Best Regards, Patrick
Hi Experts, In ViPR controller 2.4 security guide it is mentioned that VCenter uses Port 443. But in ViPR controller 3.5 Security guide it is not included. Shall I know the TCP port used by ViPR controller to talk to Vcenter Server?  Thanks, Santhosh
TCP port used for communication between ViPR controller 3.5 and Vcenter 6.x