$ipaddrshowbridge04:bridge0:<BROADCAST,MULTICAST>mtu1500qdiscnoopstateUPgroupdefaultlink/ether66:38:d0
#ipaddrshoweth024:eth0:<BROADCAST,UP,LOWER_UP>mtu1500qdiscpfifo_faststateUPgroupdefaultqlen1000link/ether32
作用域主机valid_lft永远preferred_lft永远22:eth0:<BROADCAST,MULTICAST,UP,LOWER_UP>mtu1450qdiscnoqueue状态UP组默认链接/ether02
和路由表: ipashoweth0eth0@if3:<BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN>mtu1500qdiscnoqueuestateUNKNOWNlink/ether46
0x101ARPHRD_CSLIP6=0x103ARPHRD_DDCMP=0x205ARPHRD_DLCI=0xfARPHRD_ECONET=0x30eARPHRD_EETHER=0x2ARPHRD_ETHER