Q:
Does IAP communicates with Central using its physical IP or Virtual IP ?
A: IAP communicates with Central using its physical IP.
It does not make use of VC IP during communication with Aruba Central.
ac:a3:1e:ca:54:86# show ip interface brief
Interface IP Address / IP Netmask Admin Protocol
br0 10.17.169.84 / 255.255.255.224 up up=========>> Physical IP of IAP
ac:a3:1e:ca:54:86# show ap debug cloud-server
IAP mgmt mode :athena-mgmt
cloud config recved :TRUE
autojoin mode :disable
Device Cert status :SUCCESS
Aruba Central server :52.36.85.11 =========>> IP address of Central Server
Aruba Central proxy server :None
Aruba Central redirect from :internal.central.arubanetworks.com
Aruba Central Protocol :WSS
Aruba Central uptimes :1d:1h:49m:9s
Aruba Central status :Login_done
Cloud Debug Statistics
-----------------------
Key Value
--- -----
Connect establish success 1(1)
Login done times 1(1)
Connect retry times 1(1)
Cloud Last connect status
-------------------------
Last connect ID :1
Last connect time :2017-03-23 21:38:06
Last connect trigger :athena redirect
Cloud Last login done status
-------------------------
Last connect done :2017-03-23 21:38:09
ac:a3:1e:ca:54:86# show datapath session | include 52.36.85.11 ======>> Output showing communication between IAP & Central over HTTPS (port 443) using physical IP
10.17.169.84 52.36.85.11 6 62196 443 0 0 0 0 local 17ac C
52.36.85.11 10.17.169.84 6 443 62196 0 0 0 0 local 17ac