Linuxでルーティングを追加する方法

//添加到主机的路由
# route add –host 192.168.168.110 dev eth0
# route add –host 192.168.168.119 gw 192.168.168.1
//添加到网络的路由
# route add –net IP netmask MASK eth0
# route add –net IP netmask MASK gw IP
# route add –net IP/24 eth1
//添加默认网关
# route add default gw IP
//删除路由
# route del –host 192.168.168.110 dev eth0

route add -net 192.168.3.0/24 dev eth0
route add -net 192.168.2.0/24 gw 192.168.3.254

any net x.x.x.x/24 gw y.y.y.y

# echo "1" >/proc/sys/net/ipv4/ip_forward (临时)
# vi /etc/sysctl.conf --> net.ipv4.ip_forward=1 (永久开启)