A.通配符位 B.訪問列表 C.0位 D.1位
A.255.255.255.0 B.255.255.255.128 C.255.255.255.240 D.255.255.255.224
A.access-list 101 deny tcp any 255.255.255.255 B.access-list 101 deny udp any any eq 520 C.access-list 101 deny udp any any eq 53 D.access-list 10 deny udp any 255.255.255.255