DHCP Server Setup

DHCP server

Program Environment:

DHCP server:

/usr/sbin/dhcpd

IPV4 Network:

/etc/dhcp/dhcpd.conf

/usr/lib/systemd/system/dhcpd.service

IPV6 Network:

Etc/dhcp/dhcpd6.conf

/usr/lib/systemd/system/dhcpd6.service

Dhcrelay:

/usr/sbin/dhcrelay

/usr/lib/systemd/system/dhcrelay.service

The address and port of the listener:

Server:67/udp

Client:68/udp

Configuration file:/etc/dhcp/dhcpd.conf

Configuration directives:

Option options: Trust messages configured for the client

Directives: Defining the working characteristics of DHCP server

Configure a level of points:

Global configuration

Subnet configuration

Host Configuration

Common configurations:

Default-lease-time 600; #默认租期

Max-lease-time 7200; #全局租期

Option Domain-name "Search_domain.tld"; #定义搜索域

Option Domain-name-servers Dns_server1, Dns_server2, Dns_server3; #指明配置客户端的DNS Address (window has 2, Linux has 3)

Option Routers GW1, GW2, ...; #默认网关

Option Broadcast-address broadcast_address; #定义广播地址

Subnet NETWORK netmask MASK {

Range Start_ip end_ip;

} #定义网络作用域, which is a subnet, is mainly used to specify the address pool;

Host Passacaglia { #定义保留地址, fixed address (not in address pool)

Hardware Ethernet 0:0:c0:5d:bd:95;

Fixed-address ip_addr;

}

Other directives:

FileName: Indicates the name of the boot file;

Next-server: Indicates the host IP of the server on which the boot file resides;

FileName "pxelinux.0";

Next-server 10.1.0.6;

TFTP server

Experiment:

A DHCP server, IP 192.168.1.100, the address pool is 192.168.1.50-192.168.1.150, the other two hosts take the IP address automatically, one of the machine's IP address is the MAC binding, the address is 192.168.1.161

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This machine automatically gets the address 192.168.131, the gateway is 192.168.1.100

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This machine uses a bound MAC address for the IP address, note that the 161 address is not in the address pool

This article is from the "zebra930" blog, make sure to keep this source http://zebra930.blog.51cto.com/11736340/1868010

DHCP Server Setup