1.入门级别配置实例，主要联系ospf跟简单VLAN配置，最终实现跨路由之间各数据互访
switch0配置：
Switch#show run
Building configuration...
Current configuration : 1185 bytes
!
version 12.1
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
spanning-tree mode pvst
!
interface FastEthernet0/1
switchport access vlan 2
switchport mode access
!
interface FastEthernet0/2
!
interface FastEthernet0/3
switchport access vlan 2
switchport mode access
!
interface FastEthernet0/4
switchport access vlan 3
switchport mode access
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
switchport trunk allowed vlan 2-3
switchport mode trunk
!
interface Vlan1
no ip address
shutdown
!
!
!
!
line con 0
!
line vty 0 4
login
line vty 5 15
login
router0配置：
Router#show run
Building configuration...
Current configuration : 1494 bytes
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Router
!
enable secret 5 $1$mERr$MDeUpp7auYzHywLNEQqCL/
enable password cisco
!
!
ip dhcp excluded-address 192.168.2.1
ip dhcp excluded-address 192.168.3.1
!
ip dhcp pool vlan2
network 192.168.2.0 255.255.255.0
default-router 192.168.2.1
dns-server 58.242.2.2
ip dhcp pool vlan3
network 192.168.3.0 255.255.255.0
default-router 192.168.3.1
dns-server 58.242.2.2
!
!
!
no ip cef
no ipv6 cef
!
spanning-tree mode pvst
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface FastEthernet0/0.1
encapsulation dot1Q 2
ip address 192.168.2.1 255.255.255.0
!
interface FastEthernet0/0.2
encapsulation dot1Q 3
ip address 192.168.3.1 255.255.255.0
!
interface FastEthernet0/1
ip address 192.168.20.2 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1/0
switchport mode access
!
interface FastEthernet0/1/1
switchport mode access
!
interface FastEthernet0/1/2
switchport mode access
!
interface FastEthernet0/1/3
switchport mode access
!
interface Vlan1
no ip address
shutdown
!
router ospf 1
log-adjacency-changes
network 192.168.20.0 0.0.0.255 area 0
network 192.168.2.0 0.0.0.255 area 0
network 192.168.3.0 0.0.0.255 area 0
!
router rip
!
ip classless
!
ip flow-export version 9
line con 0
!
line aux 0
!
line vty 0 4
password cisco
login
switch1配置：
Switch#show run
Building configuration...
Current configuration : 1135 bytes
!
version 12.1
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
spanning-tree mode pvst
!
interface FastEthernet0/1
switchport access vlan 4
switchport mode access
!
interface FastEthernet0/2
switchport access vlan 5
switchport mode access
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
!
interface FastEthernet0/24
switchport trunk allowed vlan 4-5
switchport mode trunk
!
interface Vlan1
no ip address
shutdown
!
!
!
!
line con 0
!
line vty 0 4
login
line vty 5 15
login
router1配置：
Router#show run
Building configuration...
Current configuration : 1223 bytes
!
version 12.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Router
!
ip dhcp excluded-address 192.168.4.1
ip dhcp excluded-address 192.168.5.1
!
ip dhcp pool vlan4
network 192.168.4.0 255.255.255.0
default-router 192.168.4.1
dns-server 58.242.2.2
ip dhcp pool vlan5
network 192.168.5.0 255.255.255.0
default-router 192.168.5.1
dns-server 58.242.2.2
!
!
!
ip cef
no ipv6 cef
!
spanning-tree mode pvst
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface FastEthernet0/0.1
no ip address
!
interface FastEthernet0/0.4
encapsulation dot1Q 4
ip address 192.168.4.1 255.255.255.0
!
interface FastEthernet0/0.5
encapsulation dot1Q 5
ip address 192.168.5.1 255.255.255.0
!
interface FastEthernet0/1
ip address 192.168.20.1 255.255.255.0
duplex auto
speed auto
!
interface Vlan1
no ip address
shutdown
!
router ospf 1
no log-adjacency-changes
network 192.168.4.0 0.0.0.255 area 0
network 192.168.5.0 0.0.0.255 area 0
network 192.168.20.0 0.0.0.255 area 0
!
ip classless
!
ip flow-export version 9
!
line con 0
!
line aux 0
!
line vty 0 4
login
原文地址：http://alonecto.blog.51cto.com/2230396/1971410
