定义一个用于封禁ICMP协议而只允许转发166.129.130.0/24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-list 198 permit icmp 166.129.130.0 255.255.255.0 any access-list 198 deny icmp any any access-list 198 permit ip any any
B.access-list 198 permit icmp 166.129.130.0 0.0.0.255 any access-list 198 deny icmp any any access-list 198 permit ip any any
C.access-list 99 permit icmp 166.129.130:0 0.0.0.255 any access-list 99 deny icnip any any access-list 99 permit ip any any
D.access-list 100 permit icmp 166.129.130.0 0.0.0.255 any access-list 100 permit ip any any access-list 100 deny icmp any any
第1题:
若要求路由器的某接口上只封禁ICMP协议,但允许159.67.183.0/24子网的ICMP数据包通过,那么使用的access-list命令是______。
A.access-list 120 deny icmp 159.67.183.0 0.0.0.255 any access-list 120 permit ip any any
B.access-list 10 permit icmp 159.67.183.0 0.0.0.255 any access-list 10 deny icmp any any access-list 10 permit ip any any
C.access-list 99 permit icmp 159.67.183.0 0.0.0.255 any access-list 99 deny icmp any any
D.access-list 110 permit icmp 159.67.183.0 0.0.0.255 any access-list 110 deny icmp any any access-list 110 permit ip any any
第2题:
在一台Cisco路由器的g3/1端口封禁端口号为139的TCP和端口号为1434的UDP连接,并封禁ICMP协议,只允许212.15.41.0/26子网的ICMP数据包通过路由器,正确的access-list配置是( )。
第3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.
B.
C.
D.
A.A
B.B
C.C
D.D
第4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,Cisc0路由器的正确配置是( )。
A.access-list 198 permit icmp 166.129.130.0 255.255.255.0 anyaccess-list 198 deny iemp any anyaccess-list 198 permit ip any any
B.access-list 198 permit icmp 166.129.130.0 0.0.0.255 anyaccess-list 198 deny iemp any anyaccess-list 198 permit ip any any
C.access-list 99 permit icmp 166.129.130.0 0.0.0.255 anyaccess-list 99 deny iemp any anyaccess-list 99 permit ip any any
D.access-list 100 permit icmp 166.129.130.0 0.0.0.255 anyaccess-list 100 permit ip any anyaccess-list 100 deny icmp any any
第5题:
在一台Cisco路由器的g3/1接口,封禁ICMP协议,只允许转发168.105.129.0/24子网的ICMP数据包,正确的访问控制列表的配置是( )。
A.
B.
C.
D.
A.A
B.B
C.C
D.D