MobileIron - relevante iOS und Android Ports
Open ports 2195 and 2196 (TCP) to Apple’s MDM server (126.96.36.199/8) for support of MDM for iOS devices. (IP addresses vary. Perform an nslookup to determine the necessary IP addresses.)
TCP 2195: gateway.push.apple.com
TCP 2196: feedback.push.apple.com
itunes.apple.com and *.mzstatic.com for doing iTunes App Store lookups.
ocsp.apple.com: Status of the distribution certificate used to sign the provisioning profile.
For devices on closed networks:
ax.init.itunes.apple.com: Current file-size limit for downloading apps over the cellular network.
iOS WiFi Devies (in WLAN):
Open port 5223 (TCP) to open to 188.8.131.52/8 to allow iOS devices using corporate WiFi to access Apple’s APNs service.
Open ports 5228 (TCP) and 443 (HTTPS) to android.apis.google.com to allow Android devices to access Google's C2DM service. (IP addresses vary. Perform an nslookup to determine the necessary IP addresses.)