网络工程 - 接收来自不同网络（有线互联网）的 ARP 请求 - 吾爱随笔录

在 WAN 接口上，我不断收到来自许多不同网络的 ARP 请求。源 MAC 地址始终相同（MAC 地址供应商：Casa Systems Inc.）。

22:57:57.032541 ... Request who-has 24.134.105.32 tell 24.134.105.34
22:57:57.034167 ... Request who-has 188.194.205.181 tell 188.194.205.254
22:57:57.060321 ... Request who-has 188.195.11.5 tell 188.195.11.254
22:57:57.085674 ... Request who-has 188.195.69.175 tell 188.195.69.25
22:57:57.089449 ... Request who-has 24.134.6.68 tell 24.134.6.70
22:57:57.090423 ... Request who-has 188.195.20.243 tell 188.195.20.254
22:57:57.122282 ... Request who-has 188.195.71.240 tell 188.195.71.254
22:57:57.124182 ... Request who-has 188.195.70.69 tell 188.195.70.254

这种行为是否在有线互联网中很常见，对我来说似乎效率很低？