DHCP中继配置

中继

1、[root@localhost ~]# mkdir /media/cdrom        //新建目录

2、[root@localhost ~]# mount /dev/cdrom /media/cdrom       //挂载镜像

3、[root@localhost ~]# rpm -ivh /media/cdrom/Packages/dhcp-4.2.5-36.el7.centos.x86_64.rpm    //rpm安装dhcp

4、[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-eno16777736   //编辑第一个网卡的配置文件

5、[root@localhost ~]# cp /etc/sysconfig/network-scripts/ifcfg-eno16777736 /etc/sysconfig/network-scripts/ifcfg-eno33554984

6、[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-eno33554984     //修改第二个网卡的配置文件

TYPE="Ethernet"
BOOTPROTO="static"
DEFROUTE="yes"
PEERDNS="yes"
PEERROUTES="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_PEERDNS="yes"
IPV6_PEERROUTES="yes"
IPV6_FAILURE_FATAL="no"
NAME="eno33554984"
DEVICE="eno33554984"
ONBOOT="yes"
IPADDR=192.168.203.12
NETMASK=255.255.255.0
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7、[root@localhost ~]# systemctl restart network    //重启网络

8、[root@localhost ~]# rpm -ql dhcp     //查看关于dhcp的指定软件包

9、[root@localhost ~]# vim /etc/sysctl.conf    //编辑虚拟机的交换功能 
10、[root@localhost ~]# sysctl -p   //开启交换功能
net.ipv4.ip_forward = 1
11、[root@localhost ~]# systemctl restart network     //重启网络服务

服务器

1、[root@localhost ~]# mkdir /media/cdrom

2、[root@localhost ~]# mount /dev/cdrom /media/cdrom

3、[root@localhost ~]# rpm -ivh /media/cdrom/Packages/dhcp-4.2.5-36.el7.centos.x86_64.rpm

4、[root@localhost ~]# vim /etc/dhcp/dhcpd.conf     //编辑安装dhcp