cento6.0 dhcp dhcrelay

 

DHCP

[root@localhost ~]# yum –y install dhcp (dhcp4.1.1 centos 6.3)

 

       

Dhcp服务器的配置:

[root@localhost ~]# cp /usr/share/doc/dhcp-4.1.1/dhcpd.conf.sample  /etc/dhcp/dhcpd.conf

[root@localhost ~]# vi /etc/dhcp/dhcpd.conf

ddns-update-style interim;

ignore client-updates;

subnet 10.10.10.0 netmask 255.255.255.0 {

 range 10.10.10.21 10.10.10.30;

 option domain-name-servers 10.10.10.10;

option domain-name "internal.example.org";

 option routers 10.10.10.1;

# option broadcast-address 10.5.5.31;

 default-lease-time 600;

 max-lease-time 7200;

}

 

subnet 172.16.1.0 netmask 255.255.255.0 {

 range 172.16.1.50 172.16.1.100;

 option domain-name-servers 10.10.10.10;

option domain-name "internal.example.org";

 option routers 172.16.1.1;

# option broadcast-address 10.5.5.31;

 default-lease-time 600;

 max-lease-time 7200;

}

 

host iptables {

 hardware ethernet 00:0c:29:5E:8c:83;

 fixed-address 10.10.10.1;

}

#host client {

#hardware ethernet 00:0c:29:56:70:15;

#fixed-address 10.10.10.8;

#}

host client {

hardware ethernet 00:0c:29:56:70:15;

fixed-address 172.16.1.25;

}

 

[root@localhost ~]#service dhcpd start

[root@localhost ~]#iptables –F

 

Dhcrelay 的配置 ;

[root@localhost ~]#yum –y install dhcp

[root@localhost home]# vim /etc/sysconfig/dhcrelay

 

INTERFACES="eth0 eth1"

# DHCPv4 only

DHCPSERVERS="10.10.10.10"

 

[root@localhost ~]# echo 1 >/proc/sys/net/ipv4/ip_forward

[root@localhost ~]#service dhcrelay start

[root@localhost ~]#iptables –F