Packet Tracer - 综合技能练习

地址分配表

设备 接口 IP 地址 子网掩码 S1 VLAN 1 10.10.10.2 255.255.255.0 PC1 NIC 10.10.10.10 255.255.255.0 PC2 NIC 10.10.10.11 255.255.255.0

场景

网络管理员要求您配置新交换机。 在本练习中,您将使用一系列要求配置新交换机的初始设置、SSH 和端口安全。

拓扑图

 

要求

·         使用以下初始设置配置 S1:

-       主机名

S1(config)#hostname S1

-       包含 warning 一词的横幅

S1(config)#banner motd #Warning,unauthorized access is prohibited#

-       控制台端口登录名和密码 cisco

S1(config)#line console 0

S1(config-line)#password cisco

S1(config-line)#login

-       已加密启用密码 class

S1(config)#enable secret class

-       加密纯文本密码

S1(config)#service password-encryption 

-       管理接口编址

·         使用以下设置配置 SSH 保护远程访问:

-       域名 cisco.com

S1(config)#ip domain-name cisco.com

-       RSA 密钥对参数,以支持 SSH 版本 2

S1(config)#crypto key generate rsa

How many bits in the modulus [512]: 1024

-       设置 SSH 版本 2

S1(config)#ip ssh version 2

-       用户 admin,加密密码 ccna

S1(config)#username admin secret ccna

-       VTY 线路仅接受 SSH 连接并使用本地登录进行身份验证

S1(config-line)#line vty 0 4

S1(config-line)#login local

S1(config-line)#transport input ssh

·         配置端口安全功能以限制网络访问:

-       禁用所有未使用的端口。

S1(config-if-range)#interface range f0/3-24,g0/1-2

S1(config-if-range)#shutdown

-       将接口模式设置为接入。

S1(config)#interface range f0/1-2

S1(config-if-range)#switchport mode access

-       启用端口安全以仅允许每个端口两台主机。

S1(config-if-range)#switchport port-security

S1(config-if-range)#switchport port-security maximum 2

-       将 MAC 地址记录在运行配置中。

S1(config-if-range)#switchport port-security mac-address sticky

-       确保在发生端口违规时禁用端口。

S1(config-if-range)#switchport port-security violation shutdown

实验步骤:

S1:

Switch>en

Switch#conf

Configuring from terminal, memory, or network [terminal]?

Enter configuration commands, one per line. End with CNTL/Z.

Switch(config)#hostname S1

S1(config)#banner motd #Warning,unauthorized access is prohibited#

S1(config)#service password-encryption

S1(config)#enable secret class

S1(config)#username admin secret ccna

S1(config)#ip domain-name cisco.com

S1(config)#crypto key generate rsa

The name for the keys will be: S1.cisco.com

Choose the size of the key modulus in the range of 360 to 2048 for your

General Purpose Keys. Choosing a key modulus greater than 512 may take

a few minutes.

How many bits in the modulus [512]: 1024

% Generating 1024 bit RSA keys, keys will be non-exportable...[OK]

S1(config)#ip ssh version 2

S1(config)#interface range f0/1-2

S1(config-if-range)#switchport mode access

S1(config-if-range)#switchport port-security

S1(config-if-range)#switchport port-security maximum 2

S1(config-if-range)#switchport port-security mac-address sticky

S1(config-if-range)#switchport port-security violation shutdown

S1(config-if-range)#interface range f0/3-24,g0/1-2

S1(config-if-range)#shutdown

%LINK-5-CHANGED: Interface FastEthernet0/3, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/4, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/5, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/6, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/7, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/8, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/9, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/10, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/11, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/12, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/13, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/14, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/15, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/16, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/17, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/18, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/19, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/20, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/21, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/22, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/23, changed state to administratively down

%LINK-5-CHANGED: Interface FastEthernet0/24, changed state to administratively down

%LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down

%LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down

S1(config-if-range)#interface vlan 1

S1(config-if)#ip add 10.10.10.2 255.255.255.0

S1(config-if)#no shutdown

S1(config-if)#

%LINK-5-CHANGED: Interface Vlan1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up

S1(config-if)#exit

S1(config)#line console 0

S1(config-line)#password cisco

S1(config-line)#login

S1(config-line)#line vty 0 4

S1(config-line)#login local

S1(config-line)#transport input ssh

S1(config-line)#end

S1#

%SYS-5-CONFIG_I: Configured from console by console

S1#wr

Building configuration...

[OK]

S1#

实验链接:https://pan.baidu.com/s/1j1PGnOLBkq0va-WegRgzoA?pwd=5312

提取码:5312

--来自百度网盘超级会员V2的分享

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