实验内容：1，vlan10和vlan20内的主机能够从远端的DHCP Server中获取IP地址。2，vlan10和vlan20之间能够互相通信。实验拓扑实验思路：三层交换机中要有去往DHCP Ser
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实验内容：
1，vlan10和vlan20内的主机能够从远端的DHCP Server中获取IP地址。
2，vlan10和vlan20之间能够互相通信。
实验拓扑
实验思路：
- 三层交换机中要有去往DHCP Server的路由，要创建三个vlan 10 20 1，其中把vlan1是为了和直连路由器通信。
- DHCP Server要有去往各个vlan的路由
实验配置：
[Switch]vlan batch 10 20 [Switch]dhcp enable [Switch]inter vlan 10[Switch-Vlanif10]dhcp select relay [Switch-Vlanif10]dhcp relay server-ip 4.4.4.2[Switch-Vlanif10]inter vlan 20[Switch-Vlanif20]dhcp sel rel[Switch-Vlanif20]dhcp relay server-ip 4.4.4.2[Switch-Vlanif20]inter vlan 1[Switch-Vlanif1]ip add 3.3.3.1 24[Switch]inter g0/0/1[Switch-GigabitEthernet0/0/1]port link-type access [Switch-GigabitEthernet0/0/1]port default vlan 10[Switch-GigabitEthernet0/0/2]port link-type access [Switch-GigabitEthernet0/0/2]port default vlan 20[Switch]ip route-static 4.4.4.0 24 3.3.3.2[Route2]inter g0/0/0[Route2-GigabitEthernet0/0/0]ip add 3.3.3.2 24[Route2-GigabitEthernet0/0/0]inter g0/0/1[Route2-GigabitEthernet0/0/1]ip add 4.4.4.1 24[Route2]ip route-static 1.1.1.0 24 3.3.3.1[Route2]ip route-static 2.2.2.0 24 3.3.3.1[DHCP Server]dhcp enable[DHCP Server]inter g0/0/0[DHCP Server-GigabitEthernet0/0/0]dhcp select global [DHCP Server]ip pool vlan10[DHCP Server-ip-pool-vlan10]network 1.1.1.0 mask 24[DHCP Server-ip-pool-vlan10]gateway-list 1.1.1.1[DHCP Server-ip-pool-vlan10]lease day 1[DHCP Server]ip pool vlan20[DHCP Server-ip-pool-vlan20]network 2.2.2.0 mask 24[DHCP Server-ip-pool-vlan20]gateway-list 2.2.2.1[DHCP Server-GigabitEthernet0/0/0]ip add 4.4.4.2 24[DHCP Server]ip route-static 3.3.3.0 24 4.4.4.1[DHCP Server]ip route-static 1.1.1.0 24 4.4.4.1[DHCP Server]ip route-static 2.2.2.0 24 4.4.4.1验证结果：
