Cisco路由器执行show access-list命令显示如下一组信息  Standard IP access list block  deny 10.0.0.0, wildcardbits 0.255.255.255 log  deny 172.16.

admin2010-10-27  34

问题 Cisco路由器执行show access-list命令显示如下一组信息  Standard IP access list block  deny 10.0.0.0, wildcardbits 0.255.255.255 log  deny 172.16.0.0, wildcard bits 0.15.255.255  permit any  根据上述信息,正确的access-list配置是

选项 A、Router (config) #access-list standard block     Router (config-std-nacl) #deny 10.0.0.0 255.0.0.0 log     Router (config-std-nacl) #deny 172.16.0.0 255.240.0.0     Router (config-std-nacl) #permit any
B、Router (config) #ip access-list standard block     Router (config-std-nacl) #permit any     Router (config-std-nacl) #deny 10.0.0.0 0.255.255.255 log     Router (config-std-nacl) #deny 172.16.0.0 0.15.255.255
C、Router (config) #ip access-list standard block     Router (config-std-nacl) #deny 10.0.0.0 255.0.0.0 log     Router (config-std-nacl) #deny 172.16.0.0 255.240.0.0     Router (config-std-nacl) #permit any
D、Router (config) #ip access-list standard block     Router (config-std-nacl) #deny 10.0.0.0 0.255.255.255 log     Router (config-std-nacl) #deny 172.16.0.0 0.15.255.255     Router (config-std-nacl) #permit any

答案D

解析
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