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OpenWrt路由器的不同介面具有相同的mac位址？

tag-icon • tag-icon linux networking wireless-networking router
OpenWrt路由器的不同介面具有相同的mac位址？

有人可以解釋為什麼不同的介面有相同的mac位址嗎？下面的eth0.1、eth0.2和wlan0的mac位址都是相同的，這正常嗎？

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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