实验环境：
服务器端：Super63 VMnet4 192.168.1.0网段
客户端： Super64 ＶＭｎｅｔ４
dhcp动态分配ip地址:
服务端安装dhcp:
[root@super63 ~]# yum install -y dhcp
拷贝配置文件：
[root@super63 dhcp-4.1.1]# cp /usr/share/doc/dhcp*/dhcpd.conf.sample /etc/dhcp/dhcpd.conf
修改配置文件：
[root@super63 dhcp-4.1.1]# vim /etc/dhcp/dhcpd.conf
＃前面关于ｓｕｂｎｅｔ多删除
subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.100 192.168.1.200;
option domain-name-servers 8.8.8.8;
option domain-name "internal.example.org";
option routers 192.168.1.1;
option broadcast-address 192.168.1.255;
default-lease-time 600;
max-lease-time 7200;
}
启动dhcp:
[root@super63 dhcp]# /etc/init.d/dhcpd restart
Starting dhcpd: [ OK ]
客户端设置默认获取ip方式为dhcp：
[root@super64 ~]# setup
启动网络：
[root@super64 ~]# service network restart
查看ip
[root@super64 ~]# ifconfig
查看租约：
[root@super63 ~]# vim /var/lib/dhcpd/dhcpd.leases
保留地址的使用：
服务端：
[root@super63 ~]# vim /etc/dhcp/dhcpd.conf
＃改为以下内容：
host super63 {
hardware ethernet 00:0C:29:20:B0:69;
fixed-address 192.168.1.66;
}
重启dhcp服务：
[root@super63 ~]# service dhcpd restart
Shutting down dhcpd: [ OK ]
Starting dhcpd: [ OK ]
客户端重启网络服务
[root@super64 ~]# service network restart
查看ip:
[root@super64 ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0C:29:20:B0:69
inet addr:192.168.1.66 Bcast:192.168.1.255 Mask:255.255.255.0
