ACL基础习题配置

 第一步

 配置ip和缺省

第二步

扩展配置 设置Telnet

[r1]aaa  进入aaa服务

[r1-aaa]local-user panxi privilege level 15 password cipher 123456  设定账号和密码

[r1-aaa]local-user panxi service-type telnet  定义账号的功能

[r1-aaa]q

[r1]user-interface vty 0 4

[r1-ui-vty0-4]authentication-mode aaa  调用

[r1-acl-adv-3001]rule deny icmp source 192.168.1.10 0 destination 192.168.1.1 0

拒绝192.168.1.10对192.168.1.1的icmp--ping

[r1-acl-adv-3002]rule deny tcp source 192.168.1.10 0 destination 192.168.1.1 0 destination-port eq 23

拒绝192.168.1.10 对192.168.1.1的TCP下目标端口号23的访问，实际拒绝了192.168.1.10 对192.168.1.1的telnet远程登录访问

第一点要求已经完成

[r1]aaa
	
[r1-aaa]local-user wjf privilege level 15 password cipher 123456
Info: Add a new user.
[r1-aaa]local-user wjf service-type telnet
[r1-aaa]
[r1-aaa]q
[r1]u	
[r1]undo
[r1]user-bind
[r1]user-group
[r1]user-interface v	
[r1]user-interface vty 0 4
[r1-ui-vty0-4]au	
[r1-ui-vty0-4]authentication-mode aaa
[r1-ui-vty0-4]
[r1-ui-vty0-4]q
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]tr	
[r1-GigabitEthernet0/0/0]traffic-filter in	
[r1-GigabitEthernet0/0/0]q
[r1]acl 3000
[r1-acl-adv-3000]rule deny icmp source 192.168.1.10 0 destination 192.168.1.1 0
[r1-acl-adv-3000]rule deny icmp source 192.168.1.10 0 destination 192.168.2.1 0
[r1-acl-adv-3000]
[r1-acl-adv-3000]q
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]t	
[r1-GigabitEthernet0/0/0]test-aaa
[r1-GigabitEthernet0/0/0]tracert
[r1-GigabitEthernet0/0/0]traffic-filter in	
[r1-GigabitEthernet0/0/0]traffic-filter inbound acl 3000
[r1-GigabitEthernet0/0/0]
[r1-GigabitEthernet0/0/0]q

​
Username:123456
Password:
Error: Failed to send authen-req.

  Logged Fail!

Username:wjf
Password:
<r1>

​

第二点要求

<pc1>ping 192.168.2.2
  PING 192.168.2.2: 56  data bytes, press CTRL_C to break
    Reply from 192.168.2.2: bytes=56 Sequence=1 ttl=254 time=60 ms
    Reply from 192.168.2.2: bytes=56 Sequence=2 ttl=254 time=50 ms
    Reply from 192.168.2.2: bytes=56 Sequence=3 ttl=254 time=40 ms
    Reply from 192.168.2.2: bytes=56 Sequence=4 ttl=254 time=40 ms
    Reply from 192.168.2.2: bytes=56 Sequence=5 ttl=254 time=40 ms

  --- 192.168.2.2 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 40/46/60 ms

<pc1>telnet 192.168.2.2
  Press CTRL_] to quit telnet mode
  Trying 192.168.2.2 ...

第三点要求

<pc2>ping 192.168.1.1
  PING 192.168.1.1: 56  data bytes, press CTRL_C to break
    Reply from 192.168.1.1: bytes=56 Sequence=1 ttl=255 time=100 ms
    Reply from 192.168.1.1: bytes=56 Sequence=2 ttl=255 time=40 ms
    Reply from 192.168.1.1: bytes=56 Sequence=3 ttl=255 time=40 ms
    Reply from 192.168.1.1: bytes=56 Sequence=4 ttl=255 time=30 ms
    Reply from 192.168.1.1: bytes=56 Sequence=5 ttl=255 time=40 ms

  --- 192.168.1.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 30/50/100 ms

<pc2>telnet 192.168.1.1
  Press CTRL_] to quit telnet mode
  Trying 192.168.1.1 ...

第四点要求

<pc2>telnet 192.168.2.2
  Press CTRL_] to quit telnet mode
  Trying 192.168.2.2 ...
  Connected to 192.168.2.2 ...

Login authentication


Username:wang
Password:
  ----------------------------------------------------------------------------- 
    
  User last login information:     
  -----------------------------------------------------------------------------
  Access Type: Telnet      
  IP-Address : 192.168.1.10     
  Time       : 2021-12-25 12:58:33-08:00     
  -----------------------------------------------------------------------------
<r2>

<pc2>ping 192.168.2.2
  PING 192.168.2.2: 56  data bytes, press CTRL_C to break
    Request time out
    Request time out
    Request time out
    Request time out
    Request time out

  --- 192.168.2.2 ping statistics ---
    5 packet(s) transmitted
    0 packet(s) received
    100.00% packet loss