HCNA-45 配置DHCP中继

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HCNA-45 配置DHCP中继

基本配置+OSPF协议配置

<Huawei>system-view

[Huawei]sysnamer1

[r1]interfaceGigabitEthernet 0/0/1

[r1-GigabitEthernet0/0/1]ipaddress 172.16.12.1 24

[r1-GigabitEthernet0/0/1]interfaceGigabitEthernet 0/0/0

[r1-GigabitEthernet0/0/0]ipaddress 192.168.10.1 24

[r1-GigabitEthernet0/0/0]quit

[r1]ospf1

[r1-ospf-1]area0

[r1-ospf-1-area-0.0.0.0]authentication-modemd5 1 cipher admin1234

[r1-ospf-1-area-0.0.0.0]network192.168.10.0 0.0.0.255

[r1-ospf-1-area-0.0.0.0]network172.16.12.0 0.0.0.255

[r1-ospf-1-area-0.0.0.0]return

<Huawei>system-view

[Huawei]sysnamer2

[r2]interfaceGigabitEthernet 0/0/0

[r2-GigabitEthernet0/0/0]ipaddress 172.16.12.2 24

[r2-GigabitEthernet0/0/0]interfaceGigabitEthernet 0/0/1

[r2-GigabitEthernet0/0/1]ipaddress 172.16.23.2 24

[r2-GigabitEthernet0/0/1]quit

[r2]ospf1

[r2-ospf-1]area0

[r2-ospf-1-area-0.0.0.0]network172.16.12.0 0.0.0.255

[r2-ospf-1-area-0.0.0.0]network172.16.23.0 0.0.0.255

[r2-ospf-1-area-0.0.0.0]authentication-modemd5 1 cipher admin1234

[r2-ospf-1-area-0.0.0.0]return

<Huawei>system-view

[Huawei]sysnamer3

[r3]interfaceGigabitEthernet 0/0/0

[r3-GigabitEthernet0/0/0]ipaddress 172.16.23.3 24

[r3-GigabitEthernet0/0/0]quit

[r3]ospf1

[r3-ospf-1]area0

[r3-ospf-1-area-0.0.0.0]network172.16.23.0 0.0.0.255

[r3-ospf-1-area-0.0.0.0]authentication-modemd5 1 cipher admin1234

[r3-ospf-1-area-0.0.0.0]return

配置全局DHCP服务器

<r3>system-view

[r3]dhcpenable  //DHCP服务开启

[r3]ippool zurkj  //创建IP地址池zurkj

[r3-ip-pool-zurkj]network192.168.10.0 mask 24  //配置网段 掩码

[r3-ip-pool-zurkj]gateway-list192.168.10.1  //配置网关地址

[r3-ip-pool-zurkj]excluded-ip-address192.168.10.200 192.168.10.254  //配置不参于分配IP地址（保留地址）

[r3-ip-pool-zurkj]leaseday 0 hour 12 minute 0  //配置DHCP租约

[r3-ip-pool-zurkj]dns-list114.114.114.114 8.8.8.8  //配置DHCP DNS主DNS 备用DNS

[r3-ip-pool-zurkj]quit

[r3]interfaceGigabitEthernet 0/0/0

[r3-GigabitEthernet0/0/0]dhcpselect global  //配置选择全局DHCP方式

[r3]displayip pool  //查看IP地址池信息

-----------------------------------------------------------------------

  Pool-name      : zurkj

  Pool-No       : 0

  Position      : Local           Status           : Unlocked

  Gateway-0      : 192.168.10.1   

  Mask           : 255.255.255.0

  VPN instance  : --

IP address Statistic

    Total       :253   

    Used       :0          Idle        :198  

Expired    :0          Conflict    :0         Disable   :55   

配置DHCP中继功能

方法1：适用于小规模DHCP，无需太多繁琐的配置

<r1>system-view

[r1]dhcpenable  //开启DHCP

[r1]interfaceGigabitEthernet 0/0/0

[r1-GigabitEthernet0/0/0]dhcpselect relay  //DHCP选择中继方式

[r1-GigabitEthernet0/0/0]dhcprelay server-ip 172.16.23.3  //配置DHCP中继服务IP地址（地址为DHCP服务器地址）

方法2：适合于较大规模DHCP，可以卫降低配置量

[r1]dhcpenable  //DHCP功能开启

[r1]dhcpserver group zurkj  //配置DHCP服务组 zurkj

[r1-dhcp-server-group-zurkj]dhcp-server172.16.23.3  //配置DHCP服务地址

[r1-dhcp-server-group-zurkj]quit

[r1]interfaceGigabitEthernet 0/0/0

[r1-GigabitEthernet0/0/0]dhcpselect relay  //配置DHCP选择中继

[r1-GigabitEthernet0/0/0]dhcprelay server-select zurkj  //配置DHCP中继服务选择zurkj组

[r1-GigabitEthernet0/0/0]quit