如何在三层交换机上实现跨VLAN 的DHCP配置

王朝other·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

3550交换机上的配置:

vlan database(划分VLAN)

vlan 2

vlan 3

interface FastEthernet0/2(将端口f0/2划分入vlan2)

switchport access vlan 2

switchport mode access

no ip address

!

interface FastEthernet0/3(将端口f0/3划分入vlan3)

switchport access vlan 3

switchport mode access

no ip address

......

interface Vlan1

ip address 192.168.1.2 255.255.255.0

ip helper-address 192.168.1.1 (将DHCP请求的广播数据包转化为单播请求,路由器才会响应)

!

interface Vlan2

ip address 192.168.2.1 255.255.255.0

ip helper-address 192.168.1.1

!

interface Vlan3

ip address 192.168.3.1 255.255.255.0

ip helper-address 192.168.1.1

路由器2621上的配置:

ip dhcp pool tyl-01(配置第一个VLAN的地址池)

network 192.168.1.0 255.255.255.0

default-router 192.168.1.1 (配置PC网关)

dns-server 202.96.134.133(配置DNS服务器)

ip dhcp pool tyl-02(配置第二个VLAN的地址池)

network 192.168.2.0 255.255.255.0

default-router 192.168.2.1

dns-server 202.96.134.133

ip dhcp pool tyl-03(配置第三个VLAN的地址池)

network 192.168.3.0 255.255.255.0

default-router 192.168.3.1

dns-server 202.96.134.133

ip route 192.168.2.0 255.255.255.0 192.168.1.2(配置静态路由)

ip route 192.168.3.0 255.255.255.0 192.168.1.2

ip dhcp excluded-address 192.168.1.1 192.168.1.2 (将路由器F0/0和3550 VLAN1的IP 地址排除)

ip dhcp excluded-address 192.168.2.1 (3550 VLAN1的IP 地址排除)

ip dhcp excluded-address 192.168.3.1 (3550 VLAN1的IP 地址排除)

 
 
 
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