路由器 telnet配置

基于password 的远程登录

telnet-password

R1

<R1>system-view 
[R1]interface GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]ip address 10.0.12.1 24
[R1-GigabitEthernet0/0/0]q
[R1]telnet server enable      # 开启telnet
Info: The Telnet server has been enabled.
[R1]user-interface vty 0 4    # 进入用户虚拟模板
[R1-ui-vty0-4]authentication-mode password  # 配置认证方式
[R1-ui-vty0-4]set authentication password cipher 123456  # 配置密码为密文传输
[R1-ui-vty0-4]user privilege level 3    # 定义用户权限级别为3级
[R1-ui-vty0-4]protocol inbound telnet   # 使用telnet 协议远程登录访问# 这里可以配置为 ssh 或 telnet 或者all(ssh and telnet)

R2

在 R2 上主要是验证 telnet 远程连接

<R2>system-view 
[R2]interface GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]ip address 10.0.12.2 24
[R2-GigabitEthernet0/0/0]q
[R2]q     # 要退出到用户视图才能使用 telnet 远程登录到其它设备
<R2>telnet 10.0.12.1
Trying 10.0.12.1 ...
Press CTRL+K to abort
Connected to 10.0.12.1 ...Login authenticationPassword:
Info: The max number of VTY users is 10, and the numberof current VTY users on line is 1.The current login time is 2021-05-13 14:10:51.
<R1>

基于aaa 的远程登录

telnet-aaa

R3

<Huawei>system-view
[Huawei]sysname R3
[R3]
[R3]interface GigabitEthernet 0/0/0
[R3-GigabitEthernet0/0/0]ip address 10.0.34.3 24
[R3-GigabitEthernet0/0/0]q
[R3]
[R3]telnet server enable 
[R3]user-interface vty 0 4
[R3-ui-vty0-4]authentication-mode aaa  # 配置认证方式为aaa 认证
[R3-ui-vty0-4]protocol inbound telnet 
[R3-ui-vty0-4]q
[R3]
[R3]aaa    # 进入 aaa 视图
[R3-aaa]local-user test password cipher 123456
[R3-aaa]local-user  test service-type telnet
[R3-aaa]q
[R3]

R4

在R4 上面验证 telnet aaa 验证方式是否成功。

<Huawei>system-view 
[Huawei]sysname R4
[R4]
[R4]interface GigabitEthernet 0/0/0
[R4-GigabitEthernet0/0/0]ip address 10.0.34.4 24
[R4-GigabitEthernet0/0/0]ping 10.0.34.3    # 连通性测试PING 10.0.34.3: 56  data bytes, press CTRL_C to breakReply from 10.0.34.3: bytes=56 Sequence=1 ttl=255 time=30 ms
May 13 2021 14:19:02-08:00 R4 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25.
191.3.1 configurations have been changed. The current change number is 2, the ch
ange loop count is 0, and the maximum number of records is 4095.Reply from 10.0.34.3: bytes=56 Sequence=2 ttl=255 time=10 msReply from 10.0.34.3: bytes=56 Sequence=3 ttl=255 time=50 msReply from 10.0.34.3: bytes=56 Sequence=4 ttl=255 time=30 msReply from 10.0.34.3: bytes=56 Sequence=5 ttl=255 time=30 ms--- 10.0.34.3 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 10/30/50 ms[R4-GigabitEthernet0/0/0]q
[R4]q
<R4>
<R4>telnet 10.0.34.3
Trying 10.0.34.3 ...
Press CTRL+K to abort
Connected to 10.0.34.3 ...Login authenticationUsername:test
Password:
Info: The max number of VTY users is 10, and the numberof current VTY users on line is 1.The current login time is 2021-05-13 14:29:06.
<R3>
<R3>
<R3>
<R3>
<R3>q
<R4>