23-李雷

server1的配置

ifconfig eth0 172.17.17.23 netmask 255.255.255.0

route add default getway 172.17.17.1   yum install dhcp-*    

cp /usr/share/doc/dhcp-3.0.5/dhcpd.conf.sample /etc/dhcpd.conf  vim /etc/dhcpd.conf  

ddns-update-style interim; ignore client-updates;        option time-offset -12000;  default-lease-time 24000;   max-lease-time 43200;       

subnet 172.17.17.0 netmask 255.255.255.0

{              option routers                  172.17.17.1;         option subnet-mask              255.255.255.0;         range dynamic-bootp 172.17.17.100 172.17.17.200;         host print      {                      hardware ethernet 12:34:56:78:AB:CD;                 fixed-address 172.17.17.101;             } } subnet 192.168.1.0 netmask 255.255.255.0 {     option routers                  192.168.1.1;         option subnet-mask              255.255.255.0;         range dynamic-bootp 192.168.1.100 192.168.1.200; } subnet 192.168.2.0 netmask 255.255.255.0 {            option routers                  192.168.2.1;         option subnet-mask              255.255.255.0;         range dynamic-bootp 192.168.2.100 192.168.2.200; }

/etc/init.d/dhcpd start    

dhcp中继代理server1的配置 yum install dhcp-*    

 vim /etc/sysconfig/dhcrelay      

 

INTERFACES="eth0 eth1 eth2"  DHCPSERVERS="172.17.17.23" 

echo 1 >/proc/sys/net/ipv4/ip_forward  

service dhcrelay start  

客户端测试 linux的主机利用dhclient 设备名称   获取IP地址   dhclient -r      释放IP地址 windows的主机设网卡为自动获取