learning target:
Tip: a large collection of na experiments
Learning Content:
Tip: You can add content to learn here.
For example:
1. telnet
2. master ssh
3. static routing
4. ospf
5. stp experiment
study-time:
Tips: You can add the planned study time here.
For example:
1. Monday to Friday 7 pm-9 pm
2, Saturday 9 am-11 am
3, Sunday 3 pm-6 pm
Learning output:
Experiment purpose:
content:
SSH topology diagram:
1. Ensure two-way connectivity
lol_1 :
//1.先进接口配置ip
int e0/0
ip add 12.1.1.1 255.255.255.0
no shut（因为思科路由器的的接口默认是关闭的）
lol_2 :
//1.先进接口配置ip
int e0/1
ip add 12.1.1.2 255.255.255.0
no shut（因为思科路由器的的接口默认是关闭的）
``
Test the connectivity of ping 12.1.1.1 and see the exclamation mark and it will almost work.
2. Principle: Need to generate rsa encrypted random number on r2
1. The host path of R2 cannot be the default router
2. R2 needs a domain name
3. R2 needs to create a user name and password needs to be enabled on the vty interface
4. As an optimized vty, only ssh traffic is allowed
3. Configure ssh
R2:
ip地址已经配置好 域名：
ip domain-name cisco.com
crypto key generate rsa 生成加密随机
默认是512 我们用1024位 看下图
//华为其它配置一个原理,生成rsa加密的随机数
rsa local-key-pair create
user admin authentication-type all
ssh user admin authentication-type all
Create a username and password and enable it on the vty interface
R2：
username admin privilege 15 password cisco
line vty 0 4
login local
transport input ssh
R2:
ssh -v 2 -l admin 12.1.1.2
