Opening ports to support mobile iOS users

If your deployment supports mobile users with Apple iOS devices, ensure your firewall and network devices allow for connections to be opened from each IBM® Sametime® Proxy Server to the Apple Push Notification Service (not server).

About this task

Ensure your firewall and network devices allow for connections to be opened from each Sametime Proxy Server to the Apple Push Notification Service (not Server) using these servers and port numbers:
  • gateway.push.apple.com, port 2195
  • feedback.push.apple.com, port 2196

The IP addresses of the above servers are variable due to the use of a Content Distribution Network by Apple. This Apple technote explains how to configure firewall rules to allow outbound connections to the entire 17.0.0.0/8 Address block : IP Address Range Used by the Push Service.

You can view IP addresses using these links:

http://networktools.nl/dns/gateway.push.apple.com

http://networktools.nl/dns/feedback.push.apple.com

Note that these IP addresses can change.

You must update the certificate every two years.