cisco中DHCP配置案例

netop5

设备：凯创 smart switch router 2000（xp2000，12个eth）
           思科  cisco2600（一个eth0/0）
最初配置：cisco2600作为dhcp，地址为10.0.2.2。xp2000 划3个vlan，地址分别是10.0.2.1   10.0.3.1    10.0.4.1。在凯创上开启ipaddress-helper。
结果：只能在10.0.2.0这个网段获得地址。
改进配置：cisco2600通过dot1q封装，同时与xp2000的三个vlan通信。xp2000上，将同cisco2600直连的端口配制成trunk口。
下面是cisco配置文件：
cisco2600#show run
Building configuration...
Current configuration : 1299 bytes
!
version 12.1
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname cisco2600
!
boot system flash cisco
!
!
!
!
!
clock timezone china 16 24
ip subnet-zero
!
ip dhcp pool global
   network 10.0.0.0 255.255.0.0
   dns-server 10.7.0.247
   lease 90
!
ip dhcp pool vlan1
   network 10.0.2.0 255.255.255.0
   default-router 10.0.2.1
!
ip dhcp pool vlan2
   network 10.0.3.0 255.255.255.0
   default-router 10.0.3.1
!
ip dhcp pool vlan3
   network 10.0.4.0 255.255.255.0
   default-router 10.0.4.1
!
!
!
!
!
!
interface Ethernet0/0
no ip address
!
interface Ethernet0/0.1
encapsulation dot1Q 2
ip address 10.0.2.2 255.255.255.0
!
interface Ethernet0/0.2
encapsulation dot1Q 3
ip address 10.0.3.2 255.255.255.0
!
interface Ethernet0/0.3
encapsulation dot1Q 4
ip address 10.0.4.2 255.255.255.0
!
interface Serial0/0
ip address 10.10.0.2 255.255.255.0
no ip mroute-cache
no fair-queue
!
interface Virtual-Template1
no ip address
!
interface Virtual-TokenRing33
no ip address
ring-speed 16
!
ip classless
ip route 10.7.8.0 255.255.248.0 10.7.0.1
ip route 192.168.0.0 255.255.255.0 10.7.0.1
no ip http server
!
!
line con 0
password 123
login
line aux 0
password 123
login
line vty 0 4
login
!
end


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/4779/showart_453534.html