Firewall recommendations for call home

This topic describes port access and firewall protection during call home activities.

IBM Storage Scale IBM® Support server is accessible through port 443. The following table lists the port and the Host/IP for communicating with the IBM Support server.

Table 1. Recommended port numbers that can be used for call home
Port Number Function Protocol Host/ IP
443 Call home TCP and UDP
esupport.ibm.com:
  • 129.42.56.189
  • 129.42.60.189
  • 129.42.54.189
  • Start of change129.42.21.70End of change
  • Start of change 129.42.18.70End of change
  • Start of change 129.42.19.70End of change
Note: It is recommended to open 129.42.0.0/18.

esupport.ibm.com works for the Call Home uploads as a proxy by forwarding data to ECuRep. Therefore, allowing any direct connections to ECuRep IPs is not required.