1、DHCP 典型配置【需求】DHCP 的主要用途是:通過DHCP服務器的協助來控管各個客戶機（執行中的用戶端）上不可缺少的網絡配置參數,包括DNS（Domain Name Service   域名服務）,WINS（Windows Internet Name Service   Windows互聯網名字服務）等?！窘M網圖】 【配置腳本】RouterA配置腳本#sysname RouterA#radius scheme system#domain system#dhcp server ip-pool 1    

2、                /創建DHCP 地址池/network 192.168.0.0 mask 255.255.255.0   /指定可以分配的地址段/gateway-list 192.168.0.1                 /指定網關/dn

3、s-list 192.168.0.2                     /指定DNS server地址/domain-name huawei-              /指定域名/#interface Ethernet0/0ip address 192.168.

4、0.1 255.255.255.0     /配置網關地址/#interface Serial2/0link-protocol ppp#interface NULL0#dhcp server forbidden-ip 192.168.0.1 192.168.0.2   /保留網關、DNS的地址/#user-interface con 0user-interface vty 0 4#1 / 4return 【驗證】在PC上執行“ipconfig”，該PC已經通過DHCP自動獲取IP地址、網關、域名信息。C:>ipconf

5、ig Windows IP ConfigurationEthernet adapter 本地連接:         Connection-specific DNS Suffix  . : huawei-        IP Address. . . . . . . . . . . . : 192.168.0.3        Subnet Mask . .

6、. . . . . . . . . : 255.255.255.0        Default Gateway . . . . . . . . . : 192.168.0.1 【提示】1、 只給出DHCP server上最基本的配置，其它可選配置可以查看操作手冊5.1.2         DHCP Relay典型配置【需求】路由器進行DHCP Relay，將DHCP報文進行中繼?！窘M網圖】 【配置腳本】RouterA配置腳本

7、#sysname RouterA#radius scheme system#domain system#interface Ethernet1/0/0ip address 192.168.0.1 255.255.255.0ip relay address 202.38.1.2             /指定DHCP Server地址/dhcp select relay         &

8、#160;             /配置為DHCP relay方式/#interface Serial2/0/0link-protocol pppip address 10.0.0.2 255.255.255.252#interface NULL0#ip route-static 0.0.0.0 0.0.0.0 10.0.0.1 preference 60#user-interface con 0user-interface vty 0 4#return 【提示】

9、1、 DHCP Server可以使用PC Server，也可以使用路由器充當。2、 當使用路由器作為DHCP Server的配置，和上一節的配置類似。 5.1.3         DHCP Client典型配置【需求】路由器作為DHCP Client，獲取接口的動態IP地址。主要用在使用路由器的以太網接口通過LAN方式接入公網的組網?！窘M網圖】 【配置腳本】RouterA配置腳本#sysname RouterA#radius scheme system#domain system#interfa

10、ce Ethernet1/0/0ip address dhcp-alloc      /配置DHCP方式獲取地址/#interface Ethernet1/0/1ip address 192.168.0.1 255.255.255.0#interface NULL0#ip route-static 0.0.0.0 0.0.0.0 202.101.68.1 preference 60/指定默認出口路由/#user-interface con 0user-interface vty 0 4#return 【驗證】通過disp i

11、nt 可以查看接口獲取的IP地址Quidwaydisp int e 1/0/0Ethernet1/0/0 current state :UP   Line protocol current state :UPDescription :  Ethernet1/0/0 Interface The Maximum Transmit Unit is 1500, Hold timer is 10(sec) Internet Address is 202.101.xx.4/24, acquired via DHCPIP Sending Frames' Format i

12、s PKTFMT_ETHNT_2, Hardware address is 00e0-fc45-2ca7Media type is twisted pair, loopback not set, promiscuous mode not set100Mb/s, Full-duplex, link type is autonegotiationOutput flow-control is disabled, input flow-control is disabledOutput queue : (Urgent queue : Size/Length/Discards)  0/50/0

13、Output queue : (Protocol queue : Size/Length/Discards) 0/500/0 Output queue : (FIFO queuing : Size/Length/Discards)  0/75/0    Last 300 seconds input rate 0.00 bytes/sec, 0.00 packets/sec    Last 300 seconds output rate 0.00 bytes/sec, 0.00 packets/sec  &

14、#160; Input: 406 packets, 57174 bytes, 406 buffers           218 broadcasts, 0 multicasts, 0 pauses           0 errors, 0 runts, 0 giants           0

15、crc, 0 align errors, 0 overruns           0 dribbles, 0 drops, 0 no buffers     Output:268 packets, 37113 bytes, 269 buffers           86 broadcasts, 19 multicasts, 0 pauses