With IPHost Network Monitor you can run simple snmp requests against a HP device in your network.
hubPortMacAddress
hub Port Mac Address
1.3.6.1.4.1.11.2.14.2.3.7
Each port maintains the MAC address of the node currently attached to it. This address is valid only when the port state flag is set to 'psSingle'. This object has been deprecated in favor of rptrAddrTrackNewLastSrcAddress.
Back to hp-icf MIB page.
IPHost Network monitor allows you to monitor hubPortMacAddress on Hewlett Packard device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.