Linux 简单的网络配置练习.doc

Linux 简单的网络配置练习一有两个网段：网段一 192.168.6.XX网段二 192.168.7.XX我们将这两个网段通一段Linux Server 连进来，让它们可以互相访问.网络分布架构图如下：1. Linux Route Server 配置:1)添加网卡 #ifconfig 查看当前最大的网卡号,如eth0Last login: Fri Aug 14 11:26:16 2009rootsql root# ifconfig eth0 Link encap:Ethernet HWaddr 00:0C:29:D6:7B:EF inet addr:192.168.6.1 Bcast:192.168.6.255 Mask:255.255.255.0UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1RX packets:684 errors:0 dropped:0 overruns:0 frame:0TX packets:220 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:100 RX bytes:70820 (69.1 Kb) TX bytes:18565 (18.1 Kb)Interrupt:5 Base address:0x2000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0UP LOOPBACK RUNNING MTU:16436 Metric:1RX packets:3450 errors:0 dropped:0 overruns:0 frame:0TX packets:3450 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:0 RX bytes:235617 (230.0 Kb) TX bytes:235617 (230.0 Kb)2.修改网卡eth0 的配置信息：vi /etc/sysconfig/network-scripts/ifcfg-eth0rootrouter root# vi /etc/sysconfig/network-scripts/ifcfg-eth0DEVICE=eth0BOOTPROTO=noneBROADCAST=192.168.6.255IPADDR=192.168.6.2NETMASK=255.255.255.0NETWORK=192.168.6.0ONBOOT=yesUSERCTL=noPEERDNS=noTYPE=EthernetGATEWAY=192.168.6.22. 添加新网卡eth1：vi /etc/sysconfig/network-scripts/ifcfg-eth1 rootrouter root# vi /etc/sysconfig/network-scripts/ifcfg-eth1# Please read /usr/share/doc/initscripts-*/sysconfig.txt# for the documentation of these parameters.USERCTL=noPEERDNS=yesTYPE=EthernetDEVICE=eth1HWADDR=00:0c:29:f5:07:d4BOOTPROTO=noneNETMASK=255.255.255.0ONBOOT=yesIPADDR=192.168.7.2NETWORK=192.168.7.0BROADCAST=192.168.7.255添加上新网卡后，运行命令重新装载网卡# /etc/init.d/network reload 3. 配置route将192.168.7 网段和192.168.6 网段的都添加进 路由添加网段：#route add net 192.168.6.0 /netmask 255.255.255.0 dev eth0#route add net 192.168.6.0 /netmask 255.255.255.0 dev eth0添加网关#route add default gw 192.168.6.2rootrouter root# route -nKernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Iface192.168.7.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1192.168.6.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo0.0.0.0 192.168.6.2 0.0.0.0 UG 0 0 0 eth0设定完route 后,执行命令echo 1 /proc/sys/net/ipv4/ip_forward 启动封包转递功能rootrouter root# echo 1 /proc/sys/net/