以下那个访问列表将只允许FTP流量进入196.15.7.0这个网络段()
A.A.access-list 10 deny tcp an 196.15.7.0 eq B.B.access-list 1001 permit tcp any 196.15.7.0 .0.0.0.255 eq ftp C.C.access-list 10 permit tcp any 196.15.7.0 0.0.0.255 D.D.access-list 1001 permit 196.15.7.0 .0.0.0.255 eq ftp