linux 服务器多ip eip 绑定弹性网卡

同地域，同地区，同vpc，同交换机

1. 创建弹性网卡：

https://help.aliyun.com/document_detail/63408.html?spm=5176.21213303.J_6028563670.32.cac93edaNsqDpc&scm=20140722.S_help%40%40%E6%96%87%E6%A1%A3%40%4063408._.ID_63408-RL_%E5%BC%B9%E6%80%A7%E7%BD%91%E5%8D%A1-OR_helpmain-V_1-P0_5

2.绑定： 

https://help.aliyun.com/document_detail/58503.html?spm=5176.21213303.J_6028563670.17.cac93edaNsqDpc&scm=20140722.S_help%40%40文档%40%4058503._.ID_58503-RL_弹性网卡-OR_helpmain-V_1-P0_2

3. 配置弹性网卡：

https://help.aliyun.com/document_detail/56955.html?spm=5176.21213303.J_6028563670.22.cac93edaNsqDpc&scm=20140722.S_help%40%40%E6%96%87%E6%A1%A3%40%4056955._.ID_56955-RL_%E5%BC%B9%E6%80%A7%E7%BD%91%E5%8D%A1-OR_helpmain-V_1-P0_3

#--- 自动配置弹性网卡 ---#

wget https://image-offline.oss-cn-hangzhou.aliyuncs.com/multi-nic-util/multi-nic-util-0.6.tgz

tar -zxvf multi-nic-util-0.6.tgz ; cd multi-nic-util-0.6 ; bash install.sh ; systemctl restart eni.service

#----------------------#

eip 绑定到实例的【弹性网卡】：

#---------------------------------- 绑定指定 ip -------------------------------------#

参考文档 https://help.aliyun.com/document_detail/56955.html#title-lq8-bpe-gjl “在Alibaba Cloud Linux 2、CentOS 7系统中配置路由” 的方式。

在服务器里添加辅助网卡的路由策略后，绑定的EIP有访问了，请您查看测试。

添加路由策略的命令,配置命令也加到了开机执行脚本 /etc/rc.local 里边了。

ip -4 route add default via 172.31.255.253 dev eth1 metric 1001

ip -4 route add default via 172.31.255.253 dev eth1 table 1001

ip -4 rule add from 172.31.63.250 lookup 1001

ip -4 rule add from 172.31.63.251 lookup 1001

ip -4 rule add from 172.31.63.252 lookup 1001

ip -4 rule add from 172.31.63.253 lookup 1001

ip -4 rule add from 172.31.63.254 lookup 1001