linux DHCP服务器的配置（redhat6.4）

2321e21 · 发表于 2015-7-9 08:23:47

步骤一：给DHCP服务器配置静态ip
[iyunv@localhost ~]# ifconfig eth0       //查看eth0网卡的配置信息
eth0    Link encap:Ethernet  HWaddr 00:0C:29:0C:C3:1F
      inet addr:192.168.1.33  Bcast:192.168.1.255  Mask:255.255.255.0
      inet6 addr: fe80::20c:29ff:fe0c:c31f/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:2519 errors:0 dropped:0 overruns:0 frame:0
      TX packets:2644 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:1806182 (1.7 MiB)  TX bytes:1671573 (1.5 MiB)
      Interrupt:18 Base address:0x2000

[iyunv@localhost ~]# route -n       // 查看路由表条目
Kernel IP routing table
Destination    Gateway       Genmask       Flags Metric Ref Use Iface
192.168.1.0    0.0.0.0       255.255.255.0 U    0    0       0 eth0
0.0.0.0       192.168.1.1    0.0.0.0       UG 0    0       0 eth0

步骤二：
根据要求安装DHCP服务器所需软件包
[iyunv@localhost ~]# rpm -q dhcp    // 查看dhcp包是否安装，下面显示未安装
package dhcp is not installed
[iyunv@localhost ~]# mkdir /ww       //建立一个文件夹
[iyunv@localhost ~]# mount /dev/cdrom /ww //将系统镜像挂载到/ww目录下
mount: block device /dev/sr0 is write-protected, mounting read-only
[iyunv@localhost ~]# rpm -ivh /ww/Packages/dhcp-4.1.1-34.P1.el6.x86_64.rpm //安装dhcp
warning: /ww/Packages/dhcp-4.1.1-34.P1.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID fd431d51: NOKEY
Preparing...             ########################################### [100%]
1:dhcp                ########################################### [100%]
[iyunv@localhost ~]#

步骤三：
产生DHCP服务器配置文件
[iyunv@localhost ~]# cp /usr//share/doc/dhcp-4.1.1/dhcpd.conf.sample /etc/dhcp/dhcpd.conf    cp：是否覆盖“/etc/dhcp/dhcpd.conf"？y

步骤四：配置/etc/dhcp/dhcpd.conf配置文件
# dhcpd.conf
#
# Sample configuration file for ISC dhcpd
#

# option definitions common to all supported networks...
option domain-name "example.org";
option domain-name-servers 8.8.8.8， 4.4.4.4;    //指定dns服务器地址

default-lease-time 600;
max-lease-time 7200;

# Use this to enble / disable dynamic dns updates globally.
#ddns-update-style none;

# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.
#authoritative;

# Use this to send dhcp log messages to a different log file (you also
# have to hack syslog.conf to complete the redirection).
log-facility local7;

# No service will be given on this subnet, but declaring it helps the
# DHCP server to understand the network topology.

subnet 192.168.1.0 netmask 255.255.255.0 {
}

# This is a very basic subnet declaration.

subnet 192.168.1.0 netmask 255.255.255.0 {       //声明网址地址
  range 192.168.1.10 192.168.1.100;             //设置地址池
  option routers 192.168.1.1;                   //设置默认网关
}

# This declaration allows BOOTP clients to get dynamic addresses,
# which we don't really recommend.

subnet 10.254.239.32 netmask 255.255.255.224 {
  range dynamic-bootp 10.254.239.40 10.254.239.60;
  option broadcast-address 10.254.239.31;
  option routers rtr-239-32-1.example.org;
}

# A slightly different configuration for an internal subnet.
subnet 10.5.5.0 netmask 255.255.255.224 {
  range 10.5.5.26 10.5.5.30;
  option domain-name-servers ns1.internal.example.org;
  option domain-name "internal.example.org";
  option routers 10.5.5.1;
  option broadcast-address 10.5.5.31;
  default-lease-time 600;
  max-lease-time 7200;
}

# Hosts which require special configuration options can be listed in
# host statements. If no address is specified, the address will be
# allocated dynamically (if possible), but the host-specific information
# will still come from the host declaration.

host passacaglia {
  hardware ethernet 0:0:c0:5d:bd:95;
  filename "vmunix.passacaglia";
  server-name "toccata.fugue.com";
}

# Fixed IP addresses can also be specified for hosts. These addresses
# should not also be listed as being available for dynamic assignment.
# Hosts for which fixed IP addresses have been specified can boot using
# BOOTP or DHCP. Hosts for which no fixed address is specified can only
# be booted with DHCP, unless there is an address range on the subnet
# to which a BOOTP client is connected which has the dynamic-bootp flag
# set.
host fantasia {
  hardware ethernet 08:00:07:26:c0:a5;
  fixed-address fantasia.fugue.com;
}

# You can declare a class of clients and then do address allocation
# based on that. The example below shows a case where all clients
# in a certain class get addresses on the 10.17.224/24 subnet, and all
# other clients get addresses on the 10.0.29/24 subnet.

class "foo" {
  match if substring (option vendor-class-identifier, 0, 4) = "SUNW";
}

shared-network 224-29 {
  subnet 10.17.224.0 netmask 255.255.255.0 {
option routers rtr-224.example.org;
  }
  subnet 10.0.29.0 netmask 255.255.255.0 {
option routers rtr-29.example.org;
  }
  pool {
allow members of "foo";
range 10.17.224.10 10.17.224.250;
  }
  pool {
deny members of "foo";
range 10.0.29.10 10.0.29.230;
  }
}

步骤五：启动DHCP服务器

[iyunv@localhost ~]# service dhcpd start
启动 dhcpd：                                              [确定]

步骤六：测试

开一台windows7和dhcp同一网络下，自动获取ip
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