VM in Hyper-v getting duplicate IP addresses

Post author:Chatur Tamang
Post published:January 30, 2020
Post category:Hyper-V / IT / Microsoft

I’ve a VMs running on Hyper-v lab at work. For inter vlan routing I am using pfsense. When I configure a vm with static IP after a reboot it is getting both the static IP and apipa address (169.254.*) addresses assigned.

Solution:

Workaround: Disable gratuitous ARP on the Windows device.
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
Set ArpRetryCount (32-bit DWORD) to 0

Solution: Configure pfsense in order to send a non-RFC compliant ARP Probe to source the probe from the Switch Virtual Interface (SVI) in the VLAN where the PC resides.

Tags: Apipa address

I am a goal-oriented Infrastructure System Engineer and Information System Security Officer with over 10 years’ of experience in planning and implementation of network, servers, virtualization and security technologies . Background includes hands-on experience with multi-platform, LAN/WAN environments, assessing and implementation of security controls in using ODAA and RMF guidance. Demonstrated record of success in migrating, troubleshooting Servers and increasing efficiency.

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