参考内容一：
1、检查设备间的端口是否创建了相应的VLAN，且端口是否放通了相应VLAN通过。
2、检查设备间的端口是否放通了对应的PVID。
3、进一步检查DHCP的配置。
参考内容二：
1. 在核心交换机上需要有三种配置：1、Vlan划分、Vlan接口的IP地址配置及每个Vlan接口应用DHCP地址池;2、配置DHCP地址池，开启DHCP服务。3、去往路由器设定Trunk接口，设定Vlan去路由器的默认静态路由
2. Vlan划分、Vlan接口的IP地址配置及每个Vlan接口应用DHCP地址池;--------------------------------------------------------------------------------划分Vlan:<H3C>system-viewSystemView:returntoUserViewwithCtrl+Z.[H3C-GigabitEthernet1/0/1]vlan2[H3C-vlan2]vlan3[H3C-vlan3]quit[H3C]interfaceGigabitEthernet1/0/1[H3C-GigabitEthernet1/0/1]portaccessvlan2[H3C]interfaceGigabitEthernet1/0/3[H3C-GigabitEthernet1/0/3]portaccessvlan3[H3C-GigabitEthernet1/0/3]quitVlan接口的IP地址配置：[H3C]interfaceVlan-interface2[H3C-Vlan-interface2]ipaddress192.168.2.25424[H3C-Vlan-interface2]quit[H3C]interfaceVlan-interface3[H3C-Vlan-interface3]ipaddress192.168.3.25424[H3C-Vlan-interface3]quit每个Vlan接口应用DHCP地址池：[H3C]interfaceVlan-interface2[H3C-Vlan-interface2]dhcpselectserver[H3C-Vlan-interface2]dhcpserverapplyip-poolvlan2[H3C-Vlan-interface2]quit[H3C]interfaceVlan-interface3[H3C-Vlan-interface3]dhcpselectserver[H3C-Vlan-interface3]dhcpserverapplyip-poolvlan3[H3C-Vlan-interface3]quit
3. 配置DHCP地址池，开启DHCP服务。--------------------------------------------------------------------------------[H3C]dhcpserverip-poolvlan2[H3C-dhcp-pool-vlan2]network192.168.2.0mask255.255.255.0[H3C-dhcp-pool-vlan2]gateway-list192.168.2.254[H3C-dhcp-pool-vlan2]dns-list202.102.128.68[H3C-dhcp-pool-vlan2]quit[H3C][H3C]dhcpserverip-poolvlan3[H3C-dhcp-pool-vlan3]network192.168.3.0mask255.255.255.0[H3C-dhcp-pool-vlan3]gateway-list192.168.3.254[H3C-dhcp-pool-vlan3]dns-list202.102.128.68[H3C-dhcp-pool-vlan3]quit[H3C][H3C]dhcpenable
