网络工程 - Juniper 有没有办法避免大量的 ARP 请求？ - 吾爱随笔录

在我的 Juniper 路由器中，接口总是为一些未使用的 IP 地址发送 ARP 请求。

有什么问题吗？

以及瞻博网络是否有办法避免大量的 ARP 请求？

有这么多ARP请求正常吗？

编辑-01

在其他 Juniper 路由器中，还有另一个问题：

....
19:21:17.207967  In arp who-has 40.21.158.134 tell 40.21.158.129              
19:21:17.207987 Out arp reply 40.21.158.134 is-at d0:07:ca:0b:63:0c            
19:21:17.891603 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:18.807865 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:21.333322 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:22.256325 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:22.974378 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:23.581650 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:24.289537 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:25.393399 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:26.198545 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:27.106570 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:27.910819 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:28.511469 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:29.713391 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:30.317394 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:31.018756 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:31.530481 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:32.137657 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:33.699346 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:34.268401 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:35.186173 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:35.796321 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:36.407914 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:38.818351 Out arp who-has 40.17.42.131 tell 40.17.42.134                
19:21:38.935274 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:39.460692 Out arp who-has 40.17.42.131 tell 40.17.42.134                
19:21:39.663202 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:40.373898 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:40.375047 Out arp who-has 40.17.42.131 tell 40.17.42.134                
19:21:41.084739 Out arp who-has 40.17.42.131 tell 40.17.42.134                
19:21:41.084927 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:41.900625 Out arp who-has 40.17.42.132 tell 40.17.42.134                
19:21:42.003071 Out arp who-has 40.17.42.131 tell 40.17.42.134                
19:21:42.671415 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:43.422088 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:44.237351 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:44.800125  In arp who-has 40.21.158.134 tell 40.21.158.130              
19:21:44.800143 Out arp reply 40.21.158.134 is-at d0:07:ca:0b:63:0c            
19:21:44.843554 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:45.453770 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:47.853272 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:48.660676 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:49.460576 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:50.160462 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:50.760365 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:55.526428 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:56.314292 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:56.925603 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:57.638616 Out arp who-has 40.17.42.133 tell 40.17.42.134                
19:21:57.658446  In arp who-has 40.21.158.134 tell 40.21.158.129              
19:21:57.658466 Out arp reply 40.21.158.134 is-at d0:07:ca:0b:63:0c 
....

您在处看到 Server( 40.21.158.129) ARP 请求19:21:17.207967，但它在处再次请求19:21:57.658446。我们知道ARP记录一般是2分钟，为什么请求这么频繁？