华为设备telnet抓包分析

华为设备telnet抓包分析"/>

华为设备telnet抓包分析

Telnet远程抓包实验

给交换机VLAN 1 配置IP地址和子网掩码
sys
Enter system view, return user view with Ctrl+Z.
[Huawei]interface Vlanif 1
[Huawei-Vlanif1]ip address 192.168.1.1 24
[Huawei-Vlanif1]undo shutdown
更改路由器名称为R，给路由器g0/0/0端口配置IP地址与子网掩码 并开启远程功能
system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R
[R]interface g0/0/0
[R-GigabitEthernet0/0/0]ip address 192.168.1.254 24
[R-GigabitEthernet0/0/0]undo shutdown

[R]user-interface vty 0 4
[R-ui-vty0-4]user privilege level 3
[R-ui-vty0-4]authentication-mode aaa
[R-ui-vty0-4]aaa
[R-aaa]local-user 123 password cipher 123
Info: Add a new user.
[R-aaa]local-user 123 service-type telnet
在系统视图模式下查询交换机与路由器的MAC地址
[R-GigabitEthernet0/0/1]display bridge mac-address
System bridge MAC address: 00e0-fc11-3974

[Huawei]display bridge mac-address
System bridge MAC address: 4c1f-ccb8-752f

测试路由器交换机的连通性
[Huawei]ping 192.168.1.254
PING 192.168.1.254: 56 data bytes, press CTRL_C to break
Reply from 192.168.1.254: bytes=56 Sequence=1 ttl=255 time=150 ms
Reply from 192.168.1.254: bytes=56 Sequence=2 ttl=255 time=50 ms
Reply from 192.168.1.254: bytes=56 Sequence=3 ttl=255 time=30 ms
Reply from 192.168.1.254: bytes=56 Sequence=4 ttl=255 time=50 ms
Reply from 192.168.1.254: bytes=56 Sequence=5 ttl=255 time=30 ms

— 192.168.1.254 ping statistics —
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/62/150 ms

选择开始抓包，弹出wireshark抓包工具
[Huawei]q
telnet 192.168.1.254
Trying 192.168.1.254 …
Press CTRL+K to abort
Connected to 192.168.1.254 …
Login authentication
Username:123
Password:

抓取三次握手情况

抓包情况：