OpenWrt路由器的不同接口具有相同的mac地址吗?

OpenWrt路由器的不同接口具有相同的mac地址吗?

有人能解释一下为什么不同的接口都有相同的 mac 地址吗?下面 eth0.1、eth0.2 和 wlan0 都有相同的 mac 地址,这是正常的吗?

ip link show eth0.1
6: eth0.1@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP qlen 1000
    link/ether 80:2a:a8:73:7d:39 brd ff:ff:ff:ff:ff:ff

ip link show eth0.2
7: eth0.2@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
    link/ether 80:2a:a8:73:7d:39 brd ff:ff:ff:ff:ff:ff

ip link show wlan0
4: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether 80:2a:a8:72:7d:39 brd ff:ff:ff:ff:ff:ff

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