单项选择题
定义一个用于封禁ICMP协议而只允许转发l66.129.130.0/24子网的ICMP数据包的访问控制列表,Cisco路由器的正确配置是( )。
A.access-list198permiticmp166.129.130.0255.255.255.0anyaccess-list198denyicmpanyanyaccess-list198permitipanyany
B.access-list198permiticmp166.129.130.00.0.0.255anyaccess-list198deny,icmpanyanyaccess-list198permitipanyany
C.access-list99permiticmp166.129.130.00.0.0.255anyaccess-list99denyicmpanyanyaccess-list99permitipanyany
D.access-list100permiticmp166.129.130.00.0.0.255anyaccess-list100permitipanyanyaccess-list100denyicmpanyany