项目五 配置访问控制列表(ACL)V1.0(5)

2．认证

R2#show ip interface

FastEthernet0/0 is up, line protocol is up (connected)

Internet address is 172.16.1.2/24

Broadcast address is 255.255.255.255

……

Outgoing access list is not set

Inbound access list is 100

……

Serial1/0 is up, line protocol is up (connected)

Internet address is 12.12.12.2/24

Broadcast address is 255.255.255.255

……

Outgoing access list is not set

Inbound access list is 100

……

Serial1/1 is up, line protocol is up (connected)

Internet address is 23.23.23.2/24

Broadcast address is 255.255.255.255

……

Outgoing access list is not set

Inbound access list is 100

……

在R2上设置telnet登录密码：

R2(config)#line vty 0 4

R2(config-line)#password cisco

R2(config-line)#login

在主机C上telnet路由器R2:

PC>telnet 12.12.12.2

Trying 12.12.12.2 ...

User Access Verification

Password:

R2>

在主机A上telnet路由器R2: