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Mac Mini 上的标准网络接口数量

tag-icon • tag-icon mac ethernet network-interface
Mac Mini 上的标准网络接口数量

任何对此的见解都会对我非常有帮助。我使用的是 Mac Mini 2011。我ifconfig查看了网络接口，发现有三张以太网卡。有些处于混杂模式，但只有一张有 IP 并且处于活动状态。但是，看到三个以太网接口是正常的吗？既然只有一个以太网接口，为什么会出现这种情况？

以下是 ifconfig 的输出：

en0: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
    options=10b<RXCSUM,TXCSUM,VLAN_HWTAGGING,AV>
    ether c8:2a:14:55:db:05 
    inet6 fe80::18c3:d66:a0a0:bab9%en0 prefixlen 64 secured scopeid 0x6 
    inet 192.168.1.2 netmask 0xffffff00 broadcast 192.168.1.255
    nd6 options=201<PERFORMNUD,DAD>
    media: autoselect (100baseTX <full-duplex,energy-efficient-ethernet>)
    status: active
en1: flags=8823<UP,BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 1500
    ether 28:cf:da:05:27:c1 
    nd6 options=201<PERFORMNUD,DAD>
    media: autoselect (<unknown type>)
    status: inactive
fw0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 4078
    lladdr c8:2a:14:ff:fe:f6:23:86 
    nd6 options=201<PERFORMNUD,DAD>
    media: autoselect <full-duplex>
    status: inactive
en2: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
    options=60<TSO4,TSO6>
    ether b2:00:1f:62:38:61 
    media: autoselect <full-duplex>
    status: inactive
p2p0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 2304
    ether 0a:cf:da:05:27:c1 
    media: autoselect
    status: inactive
bridge0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
    options=63<RXCSUM,TXCSUM,TSO4,TSO6>
    ether b2:00:1f:62:38:61 
    Configuration:
        id 0:0:0:0:0:0 priority 0 hellotime 0 fwddelay 0
        maxage 0 holdcnt 0 proto stp maxaddr 100 timeout 1200
        root id 0:0:0:0:0:0 priority 0 ifcost 0 port 0
        ipfilter disabled flags 0x2
    member: en2 flags=3<LEARNING,DISCOVER>
            ifmaxaddr 0 port 9 priority 0 path cost 0
    nd6 options=201<PERFORMNUD,DAD>
    media: <unknown type>
    status: inactive
utun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 2000
    inet6 fe80::668:7fa:43d9:908c%utun0 prefixlen 64 scopeid 0xc 
    nd6 options=201<PERFORMNUD,DAD>

对于 Mac 来说，这正常吗？例如，我在 Debian Linux 机器上运行 ifconfig 并得到：

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.101  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::5830:9f0c:3d24:5a34  prefixlen 64  scopeid 0x20<link>
        ether 38:63:bb:a5:e2:f9  txqueuelen 1000  (Ethernet)
        RX packets 1949053  bytes 2903801237 (2.7 GiB)
        RX errors 0  dropped 8  overruns 0  frame 0
        TX packets 1438197  bytes 102731272 (97.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 8060  bytes 695724 (679.4 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 8060  bytes 695724 (679.4 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 76:72:79:9a:ac:72  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

答案1

这是正常的。macOS 使用enX以太网、无线以太网（802.11 / Wi-Fi）和 Thunderbolt 网络接口。

在您的 2011 Mac mini 上，en0内置以太网、en1Wi-Fi 和en2Thunderbolt。

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