ubuntu 配置局域网

1.网卡设定

[code="java"]etc/network/interfaces
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
      address *.*.*.* #外网IP
      netmask ＊.＊.＊.＊＃子网掩码
      gateway ＊.＊.＊.＊＃外网网关

auto eth1
iface eth1 inet static
      address 172.16.8.1
      netmask 255.255.255.0
      up route add -net 172.16.8.0 netmask 255.255.255.0 gw 172.16.8.1 dev eth1
      down route add -net 172.16.8.0 netmask 255.255.255.0 gw 172.16.8.1 dev eth1


2.DNS设定

[code="java"]/etc/resolv.conf

# Generated by NetworkManager                                                                                              
nameserver *.*.*.*
nameserver *.*.*.*












3.MAC设定


[code="java"]/etc/iftab
eth0 mac *********** arp 1
eth1 mac ***********


4.shell 命令 ip_masquerade.sh

#!/bin/bash

echo 1 > /proc/sys/net/ipv4/ip_forward

/sbin/iptables -t nat -F FORWARD

/sbin/iptables -t nat -P PREROUTING DROP

/sbin/iptables -t nat -A POSTROUTING -s 172.16.8.0/24 -o eth0 -j MASQUERADE









5.相关命令


ifconfig

router

sudo iptables -L -n

sudo ipdrop
参考：http://www.ibm.com/developerworks/cn/linux/network/dif/index.html