ubus call luci-rpc getDHCPLeases: The same device returns different mac address (DHCP, DHCPv6) information

[ZoZhang]

My router is only connected to one device. Why did I return 2 different mac addresses (v4 and v6) when getting the dhcp device information ?

Am I the only one experiencing this problem ?

root@OpenWrt:~# ubus call luci-rpc getDHCPLeases
{
    "dhcp_leases": [
        {
            "expires": 41004,
            "hostname": "local",
            "macaddr": "00:E0:4C:68:4A:2F",
            "duid": "01:00:e0:4c:68:4a:2f",
            "ipaddr": "192.168.1.145"
        }
    ],
    "dhcp6_leases": [
        {
            "expires": 39596,
            "macaddr": "25:A3:30:4C:14:10",
            "duid": "0001000125a3304c14109fe10235",
            "ip6addr": "fd56:ece5:8cd8::79f",
            "ip6addrs": [
                "fd56:ece5:8cd8::79f"
            ]
        }
    ]
}

[jow-]

The MAC of the DHCPv6 lease was extracted from the DUID. Many modern DHCPv6 clients randomize the DUID for privacy reasons.

[ZoZhang]

Thanks for your patience. @jow-