Linux arp -a 输出表列定义答案

【问题标题】：Linux arp -a Output Table Column Definitions [closed]Linux arp -a 输出表列定义
【发布时间】：2018-03-15 20:35:14
【问题描述】：

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]

衷心感谢！

【问题讨论】：

标签： linux network-programming arp

【解决方案1】：

HOSTNAME：显然是if the hostname can't be resolved, you get a?
IP 地址
MAC 地址
接口或Iface：Ethernet Layer Tools, Appendix B.1.arp
路由命令：在这种情况下，ifscope 是used to bind a route to a specific interface。 Routing flags.
ARP 缓存条目状态：在这种情况下，permanent 指的是manually added address resolution。
硬件类型或HWtype：来自以太网层工具的隐式引用，附录 B.1.arp

希望这对以后的人有所帮助

【讨论】：