腾讯云外网直通

1.云主机需要绑定弹性网卡（不是EIP）

2.联系售后做外网IP直通（提供ID、IP、密码等信息）

判断外网IP直通是否成功：

ip addr show

看到外网IP，说明已绑定在网卡上

3.配置路由,命令如下：

ip route add 10.0.0.0/8 via 10.0.0.1 dev eth0
ip route add 100.64.0.0/10 via 10.0.0.1 dev eth0
ip route add 172.16.0.0/12 via 10.0.0.1 dev eth0
ip route add 192.168.0.0/16 via 10.0.0.1 dev eth0
ip route add 169.254.0.0/16 via 10.0.0.1 dev eth0
ip route add 183.60.82.98 via 10.0.0.1 dev eth0
ip route add 183.60.83.19 via 10.0.0.1 dev eth0
ip route del 0.0.0.0/0
ip route add 0.0.0.0/0 via 10.0.0.1 dev eth0 src 115.159.119.238

但是重启会失效，需要重启保留需配置/etc/rc.d/rc.local，而且需要以配置文件形式写入：

/usr/local/etc/modify_route.sh >> /tmp/modify_route.log 2>&1

cat /usr/local/etc/modify_route.sh

#!/bin/bash
ifconfig eth1 10.0.0.67/24 up
ip addr del 10.0.0.61/24 dev eth0
ip addr add 115.159.119.238/32 dev eth0
ip addr add 10.0.0.61/24 dev eth0
ip route del 169.254.0.0/16
ip route add 169.254.0.0/16 via 10.0.0.1 dev eth1
#ip route add 10.0.0.0/8 via 10.0.0.1 dev eth1
#ip route add 100.64.0.0/10 via 10.0.0.1 dev eth1
#ip route add 172.16.0.0/12 via 10.0.0.1 dev eth1
#ip route add 192.168.0.0/16 via 10.0.0.1 dev eth1
ip route add 183.60.82.98 via 10.0.0.1 dev eth1
ip route add 183.60.83.19 via 10.0.0.1 dev eth1
ip route del default
ip route add default via 10.0.0.1 dev eth0
ip route del 10.0.0.0/24 dev eth0
ip addr del 10.0.0.61/24 dev eth0
ip addr add 10.0.0.61/24 dev eth1
echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter
echo 0 > /proc/sys/net/ipv4/conf/eth1/rp_filter
echo 0 > /proc/sys/net/ipv4/conf/eth0/rp_filter
echo 0 > /proc/sys/net/ipv4/conf/default/rp_filter