在一台Cisco路由器的g0/1端口上,用标准访问控制列表禁止源地址为10.0.0.0~10.255.255....
A.Router(config)#access-list30deny10.0.0.0255.0.0.0log<br/>Router(config)#access-list30deny172.16.0.0255.240.0.0<br/>Router(config)#access-list30permitany<br/>Router(config)#interfaceg0/1<br/>Router(config-if)#ipaccess–group30in<br/>Router(config-if)#ipaccess–group30out
B.Router(config)#access-list30deny10.0.0.00.255.255.255log<br/>Router(config)#access-list30deny172.16.0.00.15.255.255<br/>Router(config)#access-list30permitany<br/>Router(config)#interfaceg0/1<br/>Router(config-if)#ipaccess-group30in<br/>Router(config-if)#ipaccess-group30out
C.Router(config)#access-list100deny10.0.0.00.255.255.255log<br/>Router(config)#access-list100deny172.16.0.00.15.255.255<br/>Router(config)#access-list100permitany<br/>Router(config)#interfaceg0/1<br/>Router(config-if)#ipaccess-group100in<br/>Router(config-if)#ipaccess-group100out
D.Router(config)#interfaceg0/1<br/>Router(config-if)#ipaccess-group99in<br/>Router(config-if)#ipaccess-group99out<br/>Router(config-if)#exit<br/>Router(config)#access-list99deny10.0.0.00.255.255.255log<br/>Router(config)#access-list99deny172.16.0.00.15.255.255<br/>Router(config)#access-list99permitany