Configuring access to the IBM Support servers

If you use Call Home to open PMRs, make sure that your IAS appliance can communicate with the IBM Support servers.

If you configure Call Home to use the email/SMTP option for triggering notifications to IBM Support to open PMRs, your IAS appliance must be able to send email to ibm.com® hosts.

When the Call Home service uses Hypertext Transfer Protocol Secure (HTTPS)/Simple Object Access Protocol (SOAP) access method for events that trigger on your appliance, the appliance uses port 443 (HTTPS) to send those messages to IBM Support servers. The following table lists the currently available IBM Support server and its IP addresses. Make sure that your appliance can send outgoing messages via port 443 to any of these addresses. It is recommended that you open the 129.42.0.0/18 subnet for the most flexibility if your IT security policies permit that.

Table 1. IBM Support servers for call home PMR access
Host name	Old IP address	New IP address	Target Date
esupport.ibm.com	129.42.60.189 129.42.54.189 129.42.56.189	129.42.19.70 129.42.21.70 129.42.18.70	31 May 2023 14 April 2023 30 May 2023

Important: Make sure that you update the system with the new IP address before reaching the specified target date . Failure to do so results in the inability to connect to the IBM support servers, as the previous IP addresses get disabled.

The HTTPS/SOAP method for the Call Home service also sends email to your customer contacts when a PMR has been created. Make sure that you consult with your IT security and networking team about the corporate firewall support for the outbound SMTP and port 443 HTTPS traffic. If there are questions about the Call Home support, or if the Call Home test messages do not appear to be working, contact IBM Support for assistance.