DHCP-路由器服务器的配置
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dhcp server ip-pool ipv4-1
gateway-list 192.168.199.1
network 192.168.199.0 mask 255.255.255.0
dns-list 114.114.114.114 8.8.8.8
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interface GigabitEthernet0/0
port link-mode route
combo enable copper
ip address 192.200.1.1 255.255.255.0
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[dhcp-server] ip route-static 192.168.199.0 24 192.200.1.2
执行 [dhcp-server]undo ip route-static 192.168.199.0 24 192.200.1.2
结果是在dhcp路由器上找不到去192.168.199.0路由
路由器-中继的配置
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interface GigabitEthernet0/1
port link-mode route
combo enable copper
ip address 192.200.1.2 255.255.255.0
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interface GigabitEthernet0/2
port link-mode route
combo enable copper
ip address 192.168.199.1 255.255.255.0
dhcp select relay
dhcp relay server-address 192.200.1.1
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交换机配置
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interface range name n1 interface GigabitEthernet1/0/1 to GigabitEthernet1/0/9
port link-mode bridge
port access vlan 2000
combo enable fiber
stp edged-port
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终端无法获取到DHCP路由器下发成功的标准总结:
①、在路由器中执行 undo dhcp enable 、在终端重新获取DHCP。
②、在路由器执行 [Router-dhcp-dhcp-pool-ip1]undo network ipv4 mask 位数（1-32） 、ipv6/位数（1-128）.
③、在路由器的接口 undo dhcp select server 、undo ipv6 dhcp select server
④、交换机接口port access vlan (1-4094) -->路由器的接口 和交换机接口 port access vlan (1-4094)-->终端电脑
⑤、路由器的接口网关v4/v6地址与地址池中的网关地址保存一致。
⑥、在路由dhcp-server-配置去地址池的网关路由没有配置。
DHCP交换机中继配置
DHCP路由器的配置
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ip route-static 192.168.100.0 24 192.168.2.2
执行 [DHCP]undo ip route-static 192.168.100.0 24 192.168.2.2
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ip route-static 192.168.100.0 24 192.168.2.2
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dhcp enable
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dhcp server ip-pool vlan100
gateway-list 192.168.100.1
network 192.168.100.0 mask 255.255.255.0
dns-list 114.114.114.114
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dhcp路由器-核心交换机
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interface GigabitEthernet0/0
port link-mode route
combo enable copper
ip address 192.168.2.1 255.255.255.0
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核心交换机配置
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vlan20
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vlan100
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interface Vlan-interface20
ip address 192.168.2.2 255.255.255.0
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interface Vlan-interface100
ip address 192.168.100.1 255.255.255.0
dhcp select relay
dhcp relay server-address 192.168.2.1
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核心交换机-dhcp路由器
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interface GigabitEthernet1/0/1
port link-mode bridge
port access vlan 20
combo enable fiber
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核心交换机-接入交换机
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interface Ten-GigabitEthernet1/0/49
port link-mode bridge
port link-type trunk
port trunk permit vlan all
combo enable fiber
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接入交换机配置
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dhcp enable
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lldp global enable
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接入交换机-核心交换机
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interface Ten-GigabitEthernet1/0/49
port link-mode bridge
port link-type trunk
port trunk permit vlan all
combo enable fiber
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接入交换机-终端
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interface range name n1 interface GigabitEthernet1/0/1 to GigabitEthernet1/0/34
port link-mode bridge
port access vlan 100
combo enable fiber
stp edged-port
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①、在交换机中执行 undo dhcp enable 、在终端重新获取DHCP。
②、在交换机执行 undo network ipv4 mask 位数（1-32） 、ipv6/位数（1-128）.
③、在交换机的接口 undo dhcp select server 、undo ipv6 dhcp select server
④、交换机接口 port access vlan (1-4094)-->终端电脑
⑤、核心交换机-接入交换机的接口trunk vlan (1-4094）、根据客户需求来定。
⑥、核心交换机配置的地址池的网关地址要与vlan三层接口的地址一致。