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电梯直达

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发表于 2012-05-08 10:31 |只看该作者 |倒序浏览

E:\未命名.bmp

1 DHCP服务器设置
1.1 关闭SELinux
Vi /etc/sysconfig/selinux
1.2 关闭iptables
Chkconfig –level 2345 iptables off
1.3 设置ip
vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.1.2
NETWORK=192.168.1.0
NETMASK=255.255.255.0
BROADCAST=192.168.1.255
GATEWAY=192.168.1.1
HWADDR=00:0c:29:62:26:ab
1.4 设置开机模式
vi /etc/inittab
1.5 安装DHCP
挂载光盘
mount /dev/cdrom /mnt/
安装
rpm -ivh dhcp-3.0.5-7.el5.i386.rpm
1.6 配置dhcpd.conf
ddns-update-style interim;
ignore client-updates;
shared-network mydhcp {
option subnet-mask 255.255.255.0;
option domain-name-servers 61.177.7.1;
default-lease-time 21600;
max-lease-time 43200;
subnet 192.168.1.0 netmask 255.255.255.0
{
option routers 192.168.1.254;
option broadcast-address 192.168.1.255;
range dynamic-bootp 192.168.1.100 192.168.1.200;
}
subnet 192.168.2.0 netmask 255.255.255.0
{
option routers 192.168.2.254;
option broadcast-address 192.168.2.255;
range dynamic-bootp 192.168.2.100 192.168.2.200;
}
}
1.7 启动DHCP
Chkconfig –level 2345 dhcpd on
Service dhcpd start
2 配置DHCP中继
2.1 关闭SELinux
Vi /etc/sysconfig/selinux
2.2 关闭iptables
Chkconfig –level 2345 iptables off
Service dhcpd stop
2.3 设置ip
vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.1.1
NETWORK=192.168.1.0
NETMASK=255.255.255.0
BROADCAST=192.168.1.255
HWADDR=00:0c:29:62:26:ab

eth1同上
2.4 设置开机模式
vi /etc/inittab
2.5 安装DHCP
挂载光盘
mount /dev/cdrom /mnt/
安装
rpm -ivh dhcp-3.0.5-7.el5.i386.rpm
2.6 配置dhcrealy
vi /etc/sysconfig/dhcrealy

INTERFACES="eth0 eth1"
DHCPSERVERS="192.168.1.2"
2.7 开启DHCP中继代理服务器的IPV4转发
vi /etc/sysctl.conf
将“net.ipv4.ip_forward = 0”改成“net.ipv4.ip_forward = 1”
执行sysctl –p命令使刚开启的IPV4转发功能生效。
2.8 启动DHCP中继代理服务
chkconfig --level 35 dhcrelay on
service dhcrelay start
dhcrelay 192.168.1.2

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以上是设置过程，现在有两个问题
1.客户端获得的ip不对，1段可能获得2段ip，2段可能获得1段ip
2.每次dhcp中继服务器重启后都要执行dhcrelay 192.168.1.2

求高手帮忙