'invalid subnet mask' configuring IMM in UEFI - IBM System x3200 M3, x3250 M3
RETAIN tip: H21649
When users are configuring IMM subnet mask via Unified Extensible Firmware Interface (UEFI) F1 setup menu, the message 'invalid subnet mask' appears after entering the last octet of the subnet mask if it is greater than 99.
For example, the issue can be observed when performing the following steps:
The system may be any of the following IBM servers:
This tip is not software specific.
This tip is not option specific.
The system has the symptom described above.
The following system BIOS/uEFI level(s) are affected:
The fix has been included in the fourth quarter 2013 Unified Extensible Firmware Interface (UEFI) firmware release.
The file is available by selecting the appropriate Product Group, type of System, Product name, Product machine type, and Operating system on IBM Support's Fix Central web page, at the following URL:
Users can work around the issue by applying the following setup methods:
In IBM Integrated Management Module (IMM) web interface, follow the following steps to change the subnet mask value:
In the Advanced Settings Utility(ASU), follow the following steps to change the subnet mask value:
Applicable countries and regions
Document id: MIGR-5093548