Virtual Machines Assigning APIPA IP Addresses Due to External DHCP Server Failure
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Virtual Machines Assigning APIPA IP Addresses Due to External DHCP Server Failure

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Article ID: 435702

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Updated On:

Products

VMware vSphere ESXi

Issue/Introduction

Virtual machines are unable to acquire expected routable IP addresses and are instead defaulting to APIPA (169.254.x.x) address assignments. Initial network triage may present symptoms resembling a vSwitch forwarding failure or physical network outage.

Environment

VMware vSphere

Cause

The external DHCP server infrastructure servicing the virtual machine network segment has failed.

Resolution

 

  • Verify vSphere Layer 2 network integrity by assigning a static IP address to an affected virtual machine.

  • Execute an ICMP ping from the virtual machine to the network's default gateway.

  • If the ping succeeds, verifying the vSwitch and physical uplinks are operational, investigate the external DHCP services.

  • Deploy or restore the backup DHCP server to resume IP address leasing.

  • Perform an IP release and renew operation within the guest operating systems of the affected virtual machines to acquire valid IP configurations.

 

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