cisco三层交换机配置dhcp

要配置Cisco三层交换机作为DHCP服务器，为每个VLAN分配IP，需要按照以下步骤进行配置：

1. 首先进入交换机的全局配置模式：

   enable
   configure terminal

2. 创建并命名VLAN：

   vlan 10
   name vlan10
   exit
   vlan 20
   name vlan20
   exit
   vlan 30
   name vlan30
   exit

3. 配置每个VLAN的虚拟接口地址并启用接口：

   interface vlan 10
   ip address 192.168.10.1 255.255.255.0
   no shutdown
   exit
   interface vlan 20
   ip address 192.168.20.1 255.255.255.0
   no shutdown
   exit
   interface vlan 30
   ip address 192.168.30.1 255.255.255.0
   no shutdown
   exit

4. 为每个VLAN生成地址池，并设置默认路由（网关）为各VLAN虚拟接口地址：

   ip dhcp pool 10
   network 192.168.10.0 255.255.255.0
   default-router 192.168.10.1
   ip dhcp excluded-address 192.168.10.1
   exit
   ip dhcp pool 20
   network 192.168.20.0 255.255.255.0
   default-router 192.168.20.1
   ip dhcp excluded-address 192.168.20.1
   exit
   ip dhcp pool 30
   network 192.168.30.0 255.255.255.0
   default-router 192.168.30.1
   ip dhcp excluded-address 192.168.30.1
   exit

通过以上配置，你可以将Cisco三层交换机配置为DHCP服务器，为每个VLAN分配相应的IP地址。