Linux arp -a 输出表列定义

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有人可以为每一列定义标题吗？

macOS High Sierra v 10.13.3
输入:$ arp -a

? (192.168.0.1) at b0:7f:b9:5a:d:a2 on en4 ifscope [ethernet]
? (192.168.0.10) at 0:18:4d:ff:ff:7 on en4 ifscope [ethernet]
? (192.168.0.15) at 9c:f3:87:ba:cd:80 on en4 ifscope [ethernet]
? (192.168.0.18) at 78:28:ca:14:db:f0 on en4 ifscope [ethernet]
? (192.168.0.24) at 38:c9:86:e:16:99 on en4 ifscope permanent [ethernet]
? (192.168.0.255) at ff:ff:ff:ff:ff:ff on en4 ifscope [ethernet]
? (224.0.0.251) at 1:0:5e:0:0:fb on en4 ifscope permanent [ethernet]
? (239.0.0.250) at 1:0:5e:0:0:fa on en4 ifscope permanent [ethernet]
? (239.192.152.143) at 1:0:5e:40:98:8f on en4 ifscope permanent [ethernet]
? (239.255.255.250) at 1:0:5e:7f:ff:fa on en4 ifscope permanent [ethernet]

真诚的感谢!

Answer 1

？ (239.255.255.250) at 1:0:5e:7f:ff:fa en4 ifscope permanent [以太网]
主机名 | IP 地址 | MAC地址|接口(interface)|路线命令| ARP 缓存条目状态 |硬件类型

主机名:显然if the hostname can't be resolved, you get a ？
IP地址
MAC地址
接口(interface)或Iface:Ethernet Layer Tools, Appendix B.1.arp
路由命令:在本例中，ifscope 为 used to bind a route to a specific interface 。 Routing flags .
ARP 缓存条目状态:在本例中，permanent 指的是 manually added address resolution .
硬件类型或HWtype:来自以太网层工具附录B.1.arp的隐式引用

希望这对以后的人有帮助