centos6.8搭建dhcp服务器

	一、安装dhcp软件 [root@dns-server ~]# yum install dhcp -y 复制代码 二、配置dhcp参数 [root@dns-server ~]# cat /etc/dhcp/dhcpd.conf    # # DHCP Server Configuration file. #   see /usr/share/doc/dhcp*/dhcpd.conf.sample #   see 'man 5 dhcpd.conf' # 复制代码 subnet 192.168.3.0 netmask 255.255.255.0 {  #这个是设置ip网段和子网掩码   range 192.168.3.10 192.168.3.40;              #自动分配的ip地址段   option domain-name-servers 192.168.3.1;       #dns服务器地址   option domain-name "dns.test.com";            #dns服务器名字   option routers 192.168.3.254;                 #网关   option broadcast-address 192.168.3.255;       #广播地址   default-lease-time 600;                          max-lease-time 7200;               复制代码             } [root@dns-server ~]# /etc/init.d/dhcpd start 复制代码 三、在客户端测试 C:\Documents and Settings\Administrator>ipconfig Windows IP Configuration Ethernet adapter 本地连接: 复制代码        Connection-specific DNS Suffix  . : dns.test.com         IP Address. . . . . . . . . . . . : 192.168.3.10         Subnet Mask . . . . . . . . . . . : 255.255.255.0         Default Gateway . . . . . . . . . : 192.168.3.254 C:\Documents and Settings\Administrator> 复制代码 四、dhcp参数模板 [ root@dns-server ~]# cat /usr/share/doc/dhcp-4.1.1/dhcpd.conf.sample # dhcpd.conf # # Sample configuration file for ISC dhcpd # # option definitions common to all supported networks... option domain-name "example.org"; option domain-name-servers ns1.example.org, ns2.example.org; default-lease-time 600; max-lease-time 7200; 复制代码 # 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 10.152.187.0 netmask 255.255.255.0 { } 复制代码 # This is a very basic subnet declaration. subnet 10.254.239.0 netmask 255.255.255.224 {   range 10.254.239.10 10.254.239.20;   option routers rtr-239-0-1.example.org, rtr-239-0-2.example.org; } 复制代码 # 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; } 复制代码 # 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; } 复制代码 # 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"; } 复制代码 # 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; } [code]# 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"; } 复制代码 shared-network 224-29 {   subnet 10.17.224.0 netmask 255.255.255.0 {     option routers rtr-224.example.org; 复制代码   }   subnet 10.0.29.0 netmask 255.255.255.0 {     option routers rtr-29.example.org;   } 复制代码   pool {[/code]    allow members of "foo";     range 10.17.224.10 10.17.224.250;   } 复制代码   pool {    deny members of "foo";     range 10.0.29.10 10.0.29.230;   } 复制代码 } [root@dns-server ~]# 复制代码