centos6 搭建dhcp 网关服务器

原创

xiangxiang8 2012-08-04 22:01:47 博主文章分类：服务器应用 ©著作权

文章标签 linux dhcp yum centos 文章分类 服务器

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参考

1.http://chenxizhuimeng.blog.51cto.com/2516314/505986

2.http://dreamfire.blog.51cto.com/418026/178680

做试验学习搭建dhcp服务器；

服务器系统是centOS6,双网卡，

内网卡：eth1 /IP 172.16.10.1 Bcast:172.16.255.255 Mask:255.255.0.0
外网卡：eth0 /IP 192.168.2.15 Bcast:192.168.255.255 Mask:255.255.0.0

1.先配置好网卡使之能连通外网

[root@mydhcpgw /]# vi /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE="eth1"
HWADDR="00:14:D5:EF:19:66"
NM_CONTROLLED="yes"
ONBOOT="yes"
TYPE=Ethernet
BOOTPROTO=none
PREFIX=16
IPADDR=172.16.10.1
NETMASK=255.255.255.0
#GATEWAY=172.16.10.1
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes

[root@mydhcpgw /]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
WADDR="00:14:D5:EF:19:64"
NM_CONTROLLED="yes"
ONBOOT="yes"
TYPE=Ethernet
BOOTPROTO=none
PREFIX=16
IPADDR=192.168.2.15
NETMASK=255.255.255.0
GATEWAY=192.168.2.1
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes

[root@mydhcpgw /]# cat /etc/resolv.conf
nameserver 8.8.8.8

确保能ping 通外网

[root@mydhcpgw /]# ping www.baidu.com
PING www.a.shifen.com (119.75.217.56) 56(84) bytes of data.
64 bytes from 119.75.217.56: icmp_seq=1 ttl=54 time=2.01 ms
64 bytes from 119.75.217.56: icmp_seq=2 ttl=54 time=2.03 ms

2.安装DHCP服务：

#yum install dhcp -y

3.修改主配置文件

[root@mydhcpgw /]# vi /etc/dhcp/dhcpd.conf
#
# DHCP Server Configuration file.
#   see /usr/share/doc/dhcp*/dhcpd.conf.sample
#   see 'man 5 dhcpd.conf'
#
ddns-update-style none;
ignore client-updates;
default-lease-time   3600;
max-lease-time   7200;
option routers 172.16.10.1;
option domain-name “mydhcpgw.com”;
option domain-name-servers 8.8.8.8;
subnet 172.16.10.0 netmask 255.255.255.0 {
range 172.16.10.100 172.16.10.150;
host test1 {
hardware   ethernet 00:14:D5:90:43:17;
fixed-address 172.16.10.108;
}
}