DHCP Snooping功能与DOT1x的DHCP Option 82功能是互斥的,也不能同时使用DHCP Snooping和DHCP Option82。
也即ip dhcp relay information option82,ip dhcp relay information option dot1x与ip dhcp snooping命令冲突
Ruijie(config)#ip dhcp snooping
Ruijie(config)#service dhcp
Ruijie(config)#ip dhcp relay information option82
%ERROR: conflict with dhcp snooping
Ruijie(config)#ip dhcp relay information option dot1x
%ERROR: conflict with dhcp snooping
在开启ip dhcp snooping情况下,可以采用如下替代方式,运用option 82
ip dhcp snooping information option
ip dhcp snooping