7.3 DHCPv4高级实验
项目拓扑：
项目需求：
1、某公司因业务需要，为各个部门动态分配IP地址，PC1到PC4分别是属于vlan10-vlan40，需要利用出口的路由器做DHCP服务器，请合理配置并实现动态分配IP地址的目的
2、所有网络设备配置enable密码、console登陆密码、ssh登陆、DNS禁止查询、防控制台中断及当前时间配置。
项目实施：
S1：
en
conf t
hostname S1
en sec cisco
line con 0
pass cisco
logging sy
login
exi
clock timezone now 8
exi
clock set 9:00:00 7 oct 2021
en
conf t
no ip domain-name
ip domain-name cjgy.com
crypto key generate rsa general-keys modulus 1024
user admin sec class
line vty 0 15
transport input ssh
login local
exi
vlan 10
vlan 20
vlan 30
vlan 40
exi
int range f0/1-3
sw mo tr
exi
S2:
en
conf t
hostname S2
en sec cisco
line con 0
pass cisco
logging sy
login
exi
clock timezone now 8
exi
clock set 9:00:00 7 oct 2021
en
conf t
no ip domain-name
ip domain-name cjgy.com
crypto key generate rsa general-keys modulus 1024
user admin sec class
line vty 0 15
transport input ssh
login local
exi
VLAN 10
VLAN 20
exi
int f0/1
sw mo ac
sw ac vl 10
exi
int f0/2
sw mo ac
sw ac vl 20
exi
int f0/3
sw mo tr
exi
S3:
en
conf t
hostname S3
en sec cisco
line con 0
pass cisco
logging sy
login
exi
clock timezone now 8
exi
clock set 9:00:00 7 oct 2021
en
conf t
no ip domain-name
ip domain-name cjgy.com
crypto key generate rsa general-keys modulus 1024
user admin sec class
line vty 0 15
transport input ssh
login local
exi
VLAN 30
VLAN 40
exi
int f0/1
sw mo ac
sw ac vl 30
exi
int f0/2
sw mo ac
sw ac vl 40
exi
int f0/3
sw mo tr
exi
R1:
en
conf t
hostname R1
en sec cisco
line con 0
pass cisco
logging sy
login
exi
clock timezone now 8
exi
clock set 9:00:00 7 oct 2021
en
conf t
no ip domain-name
ip domain-name cjgy.com
crypto key generate rsa general-keys modulus 1024
user admin sec class
line vty 0 15
transport input ssh
login local
exi
int g0/0.10
en do 10
ip add 192.168.10.254 255.255.255.0
exi
int g0/0.20
en do 20
ip add 192.168.20.254 255.255.255.0
exi
int g0/0.30
en do 30
ip add 192.168.30.254 255.255.255.0
exi
int g0/0.40
en do 40
ip add 192.168.40.254 255.255.255.0
exi
int g0/0
no sh
exi
ip dhcp ex 192.168.10.254
ip dhcp ex 192.168.20.254
ip dhcp ex 192.168.30.254
ip dhcp ex 192.168.40.254
ip dhcp pool vlan10
net 192.168.10.0 255.255.255.0
de 192.168.10.254
dns 192.168.10.254
exi
ip dhcp pool vlan20
net 192.168.20.0 255.255.255.0
de 192.168.20.254
dns 192.168.20.254
exi
ip dhcp pool vlan30
net 192.168.30.0 255.255.255.0
de 192.168.30.254
dns 192.168.30.254
exi
ip dhcp pool vlan40
net 192.168.40.0 255.255.255.0
de 192.168.40.254
dns 192.168.40.254
exi
实验验证：
PC Client ssh登陆到路由：
更新: 2025-03-11 13:39:00
原文: https://www.yuque.com/yuhui.net/network/ni7bv5e6nwwdcnv6
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