Linux Router

两个网卡的主机

eth0:192.168.4.137

eth1:10.0.0.1

vim /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0

HWADDR=00:0C:29:57:7E:E5

TYPE=Ethernet

UUID=a4c2f66c-e964-49ba-9793-b14901a1e620

ONBOOT=yes

NM_CONTROLLED=yes

BOOTPROTO=static

IPADDR=192.168.4.137

NETMASK=255.255.255.0

GATEWAY=192.168.1.254

eth1

vi ifcfg-eth1

DEVICE=eth1

TYPE=Ethernet

ONBOOT=yes

NM_CONTROLLED=yes

BOOTPROTO=static

IPADDR=10.0.0.1

NETMASK=255.0.0.0

GATEWAY=10.0.0.254

vi /etc/sysctl.conf

net.ipv4.ip_forward = 1

service network restart
route -n            #查看路由表

Kernel IP routing table

Destination Gateway Genmask Flags Metric Ref Use Iface

192.168.4.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0

169.254.0.0 0.0.0.0 255.255.0.0 U 1002 0 0 eth0

10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0

0.0.0.0 10.0.0.254 0.0.0.0 UG 0 0 0 eth0

/etc/init.d/iptables stop            #关闭防火墙