
一·网络拓扑图

二·划分网段-------vlsm
一共三个广播域,学校内网划分两个vlan,则一共四个广播域。
整个学校网络基于192.168.1.0/24划分,需要划分四个网段,两个pc,两个路由器
2的n次方个网段,需要从主机位借给网络位n位,被借位成为子网位
192.168.1. 00 000000/26 ----192.1681.0/26
192.168.1. 01 000000/26 ----192.168.1.64/26
192.168.1. 10 000000/26 ----192.168.1.128/26
192.168.1. 11 000000/26 ----192.168.1.192/26
网络位 子网位 主机位
三·配置
交换机配置vlan
[sw1]vlan batch 2 3
[sw1]int g 0/0/1
[sw1-GigabitEthernet0/0/1]port link-type access
[sw1-GigabitEthernet0/0/1]port default vlan 3
[sw1-GigabitEthernet0/0/1]int g 0/0/2
[sw1-GigabitEthernet0/0/2]port link-type access
[sw1-GigabitEthernet0/0/2]port default vlan 3
[sw1-GigabitEthernet0/0/2]int g 0/0/3
[sw1-GigabitEthernet0/0/3]port link-type access
[sw1-GigabitEthernet0/0/3]port default vlan 2
[sw1]int g 0/0/4
[sw1-GigabitEthernet0/0/4]port link-type trunk
[sw1-GigabitEthernet0/0/4]port trunk allow-pass vlan 2 3
路由器配置关于vlan23的子接口
[ar2]int g 0/0/0.2
[ar2-GigabitEthernet0/0/0.2]ip address 192.168.1.65 26
[AR2-GigabitEthernet0/0/0.2]dot1q termination vid 2 ---------- 剥掉vlan2 的标签
[AR2-GigabitEthernet0/0/0.2]int g 0/0/0.3
[AR2-GigabitEthernet0/0/0.3]ip address 192.168.1.1 26
[AR2-GigabitEthernet0/0/0.3]dot1q termination vid 3
[AR2-GigabitEthernet0/0/0.2]arp broadcast enable
[AR2-GigabitEthernet0/0/0.3]arp broadcast enable


PC2用dhcp配置
[AR2]dhcp enable
[AR2]ip pool vlan 3
[AR2-ip-pool-vlan3]network 192.168.1.0 mask 26
[AR2-ip-pool-vlan3]gateway-list 192.168.1.1
[AR2-ip-pool-vlan3]dns-list 100.1.1.1
[AR2-ip-pool-vlan3]excluded-ip-address 192.168.1.2 ----------- 排除PC1的ip地址
[AR2]int g 0/0/0.3
[AR2-GigabitEthernet0/0/0.3]dhcp select global

R2和R1之间使用浮动静态路由
[AR1-GigabitEthernet0/0/0]ip address 192.168.1.193 26
[AR1-GigabitEthernet0/0/2]ip address 192.168.1.129 26
[AR2-GigabitEthernet0/0/1]ip address 192.168.1.194 26
[AR2-GigabitEthernet0/0/2]ip address 192.168.1.130 26
[AR1]ip route-static 192.168.1.0 26 192.168.1.130
[AR1]ip route-static 192.168.1.0 26 192.168.1.194 preference 70

外网配置ip
[AR1-GigabitEthernet0/0/1]ip address 13.0.0.1 24
[AR3-GigabitEthernet0/0/0]ip address 13.0.0.3 24
[AR3-GigabitEthernet0/0/1]ip address 34.0.0.3 24
[AR3-GigabitEthernet0/0/2]ip address 35.0.0.3 24
[AR4-GigabitEthernet0/0/0]ip address 34.0.0.4 24
[AR4-GigabitEthernet0/0/1]ip address 100.1.1.254 24
[AR5-GigabitEthernet0/0/0]ip address 35.0.0.5 24
[AR5-GigabitEthernet0/0/1]ip address 56.0.0.5 24
[AR6-GigabitEthernet0/0/0]ip address 56.0.0.6 24
[AR6-GigabitEthernet0/0/1]ip address 172.16.1.254 24
[AR3]interface LoopBack 0
[AR3-LoopBack0]ip address 3.3.3.3 24 ----------环回
RIP
出口和入口都需要宣告
[AR3]rip 1
[AR3-rip-1]version 2
[AR3-rip-1]network 13.0.0.0
[AR3-rip-1]network 34.0.0.0
[AR3-rip-1]network 35.0.0.0
[AR3-rip-1]network 3.0.0.0
[AR4]rip 1
[AR4-rip-1]ver 2
[AR4-rip-1]network 34.0.0.0
[AR4-rip-1]network 100.0.0.0
[AR5]rip 1
[AR5-rip-1]ver 2
[AR5-rip-1]network 35.0.0.0
[AR5-rip-1]network 56.0.0.0
补缺省路由
[AR1]ip route-static 0.0.0.0 0 13.0.0.3
[AR2]ip route-static 0.0.0.0 0 192.168.1.129
[AR2]ip route-static 0.0.0.0 0 192.168.1.193 preference 70
ACL
[AR1]acl 2000
[AR1-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[AR1-GigabitEthernet0/0/1]nat outbound 2000

[AR6]acl 2000
[AR6-acl-basic-2000]rule permit source 172.16.1.0 0.0.0.255
[AR6-GigabitEthernet0/0/0]nat outbound 2000
[AR6-GigabitEthernet0/0/0]nat server protocol tcp global current-interface www i
nside 172.16.1.1 www

pc1可以访问3.3.3.3,平常不可以访问
[AR2]acl 3000
[AR2-acl-adv-3000]rule deny icmp source 192.168.1.62 0.0.0.0 destination 3.3.3.3
0.0.0.0
[AR2-acl-adv-3000]rule permit ip source any
[AR2-acl-adv-3000]q
[AR2]int g 0/0/0.3
[AR2-GigabitEthernet0/0/0.3]traffic-filter inbound acl 3000
Telnet
[AR1]telnet server enable
[AR1]user-interface vty 0 4
[AR1-ui-vty0-4]authentication-mode aaa
[AR1]aaa
[AR1-aaa]local-user hcip password cipher 123456
Info: Add a new user.
[AR1-aaa]local-user hcip service-type telnet
[AR1-aaa]local-user hcip privilege level 15
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