Default Ethernet Ports for the HMC1 and HMC2 Ports

Troubleshooting

Problem

The default TCP/IP addresses for POWER server FSP ethernet ports HMC1 and HMC2 differ depending on the platform and server firmware level. The following table documents the default IP addresses of both ports for both single and redundant FSPs (if installed).

Resolving The Problem

Platform	FSP	FSP	Subnet Mask
	HMC1	HMC2
Power5	192.168.2.147	192.168.3.147	255.255.255.0
*Power6 and later	169.254.2.147	169.254.3.147	255.255.255.0

Platform	Redundant FSP (if installed)	Redundant FSP (if installed)	Subnet Mask
	HMC1	HMC2
Power5	192.168.2.146	192.168.3.146	255.255.255.0
*Power6 and later	169.254.2.146	169.254.3.146	255.255.255.0

Note: IBM POWER8, POWER7, and POWER6 servers with firmware Ex340 or later implement zero configuration (zeroconf) networking for the FSP. The default settings remain the same however it implements zero configuration networking to prevent duplicate IP addresses, should multiple servers be plugged into the same network with no DHCP server available. When the FSP is plugged into a network with no active DHCP server, it will locate a unique IP address in the 169.254 range.

To determine the current IP address of the FSP, use control panel function 30. For further information see IBM support document N1015416 Panel Function 30 at http://www.ibm.com/support/docview.wss?uid=nas8N1015416

[{"Product":{"code":"SSB6AA","label":"Power System Hardware Management Console Physical Appliance"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":"HMC","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"Version Independent","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]

Historical Number

518741329

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Document Information

Modified date:
22 September 2021

UID

nas8N1018623

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