你用的是什么路由器啊？？？show arp是肯定可以看到你要的信息的MP2840#show arp LINK LEVEL ARP TABLEdestination gateway flags Refcnt Use Interface----------------------------------------------------------------------------10.168.0.1 bc30.5bc6.17c1 400405 0 559 gigaethernet110.168.0.2 bc30.5bc6.179f 400405 0 21481 gigaethernet110.168.0.4 bc30.5bca.746f 400405 0 1477927 gigaethernet110.168.0.5 0050.c220.c81d 400405 0 4327 gigaethernet110.168.0.7 14fe.b5e1.4e36 400405 0 1225 gigaethernet1
