Applies to FlexPod iSCSI SAN boot Cisco UCS VXLAN fabric Issue Cisco UCS blade unable to boot from SAN (iSCSI environment) Error: Unable to match boot policy to currently available devices ARP request...Applies to FlexPod iSCSI SAN boot Cisco UCS VXLAN fabric Issue Cisco UCS blade unable to boot from SAN (iSCSI environment) Error: Unable to match boot policy to currently available devices ARP requests lost between server and storage in the direction of the storage. If ARP is configured manually on the host, unicast works without issues.