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The Mode for Obtaining an IP Address Turns to DHCP After the BMC Static IP Address is Set and the Server Is Powered Off

Publication Date:  2015-06-24 Views:  96 Downloads:  0
Issue Description
Hardware configuration:
A BH620

Software configuration:
Baseboard management controller (BMC): 2.15
Basic input/output system (BIOS): V036

Symptom:

After the customer sets the mode for obtaining an IP address to Static on the iMana web user interface (WebUI), powers off the board, removes and inserts the board, and powers on the board, the static IP address is lost, and the mode for obtaining an IP address turns to DHCP automatically.
Handling Process
1.  Set the BMC IP address to the static IP address for the BH620 on the iMana WebUI. This problem persists.

2.  Set the BMC IP address to the static IP address for the BH620 on the BMC command-line interface (CLI). This problem persists.

3.  Set the BMC IP address to the static IP address for the BH620 in the BIOS. This problem persists.

4.  Upgrade the BMC firmware of the BH620 from 2.15 to 2.16. This problem persists.

5.  The BMC data directory contains the backupip file for recording the BMC IP information. Go to the the BMC data directory of the BH620 over FTP, check the backupip file, and find that the IP information is incorrect, as shown in Figure 1. Figure 2 shows the correct IP information.

Figure 1 Incorrect IP information



The backupip file is damaged, which results in a failure in writing IP information or incorrect IP information. As a result, the backupip file cannot read the correct BMC IP address after the board is powered off, removed, inserted again, and powered on. The static IP address is lost, and the mode for obtaining an IP address turns to DHCP.

6.  Go to the the BMC data directory of the BH620 over FTP and back up the backupip file before deleting it or renaming it. The system recreates a correct backupip file and writes the BMC IP information automatically. The problem is solved. Figure 2 shows the correct IP information in the recreated backupip file.

Figure 2 Correct IP information

Root Cause
The BMC static IP address is lost after the board is powered off, removed, inserted again, and powered on due to the damaged backupip file. The damage cause is unknown.

Solution
Go to the the BMC data directory of the BH620 over FTP and back up the backupip file before deleting it or renaming it. The system recreates a correct backupip file automatically.

Suggestions
Check whether the backupip file in the BMC data directory is damaged. If yes, back up the backupip file before deleting it or renaming it. The system recreates a correct backupip file automatically.

END