1.DHCP服务器上正常配置地址池
如： ip pool vlan10
network 192.168.10.0 mask 24
gateway-list 192.168.10.254

2.在中继路由器上配置
dhcp select relay
dhcp relay server-ip x.x.x.x
dhcp select interface
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dhcp server static-bind ip-address 192.168.20.x mac-address pc机MAC地址

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