linux-DHCP服务器+中继路由

1、精品文档DHCP服务器上的配置（前提要能 PING通）首先安装DHCPmount /dev/c：drom /mntrpm -ivh /mnt/Server/dhcp3*05-7.e15.1386*rpm安装好后打开DHCF配置文件：vi /etc/dhcpd.conf打开后进行相关的配置：先在末行模式下将 /usr/share/doc/dhcp-3.0.5/dhcpd.co nf.sample文件的内容拷贝到 /etc/dhcpd.co nf 里面。拷贝完后，在命令行模式使用 30yy命令拷贝从sub net开始的30行内容。 然后进行下一步的配置；同理，这里写上另外一个网段的IP:2欢迎下载

2、精品文档6欢迎下载*8 raotgiocainoat：-记得写上注释，不要多也不要少。这里宴写上注禅# i-#s i-ii*l.r a otJilaca! host t e m|)玄件角谊亘膏帖缨we 苻巒册衲貼徑扯Selects pointtopaint node Cdefault is hybrid) Dont changei s unlessyou understand Netbos very ue11opt i w ncrb-ios-T5Qdo-t.po 2:raiipe dynamic bootp 20.0,0.125 20 . D. 0.254 ；default-1imc 21 P

3、OO :max lonbut丄itiu 43200 ；斗 wc unnt t he name server to npponr nt n fixod address hoyL ns next-server ：hardware oihornQt 12：67S：B：CDifixedaddress 207,175,42.254； # DHCP Server Configuration file,i see /usrfsliare/doc/dhep*/dhepd.Qonl.sarnrilc?root&localhost service dhepd restart 关闭

4、dhepd;确定自动dhepd：关闭防火墙：确定service iptables stop重启下网卡：ifdown ethO:if up ethO中继路由的配置(前提要能PING通)进入配置文件，打开 LINUX的路由功能。Lroatlocalhost J- vi /etc/sysct1.conf将o改成1。斗 Kerno1 sysc11 configuration filo for Rod Hat Linux4 For binary values? 0 is disabled, 1 is enabled See sysct1 二 sysct1.conf(5) for more details

5、.目 Controls IT packet forwarding启用：| rootCtlocalhostsysct 1 pnet.i 卩灯4.i日rd = 1netipv4.confdef suit rp_filtEr = 1netVpv4*conf.d巳f日ult曰匚匚匚已utw = 0 ke rne1sysrq = 仃ke rnelcore_uses_pid = 1net.ipv4.tcp_syncookies = 1kernel.msgmnb 二 5539kernel.msgmax 二 65539kernel * shinmax = 4294967295ke rne1.shma11 =

6、268435458安装DHCP服务器：Irootlocalhost # mount /dev/cdrom /mntmount： block device /dev/cdrom is write-protected. mounting read-only frootlocalhost rpm -ivh /mnt/Server/dhcp-3.0.5-7.el5.i386.rpm 打开DHCP勺配置文件：| raotalocalhost fr vi /etc/sysconfig/dhcdhcpddhcrelayrrootlocalhost 1F vi /etc/svsconfis/dhcrelav打

7、开DHCP勺中继功能（这个IP地址是DHCF服艮务器的地址）：斗 Command line options hereINTERFACES-DHCPSERVERS=10.0.0,2启用服务：root&locaIhost service dhcrelay restart 关闭dhcrelay:失败启动 dhcrelay: Internet Systems Consortium DHCP Relay Agent 3*0.5-Red HatCopyright 2004-2006 1nternet Systems Consortium.All rights reserved*For info, please visit httpi/www,isc org/sw/dhep/Listening on LPF/ethl/OO：0c：29：f9：b7:1bSending on LPF/ethl/00：0c：29：f9：b7：lbListe