一个ec2 instance 配置多网卡
- 首先要确定你需要几个公网IP，以2个为例
- 首先要确定你需要几个网卡，以2个为例
- 申请两个 elastic ip：IP1 ip2
- 申请两个eni(network interface)：eni1，eni2
- 创建一个ec2
- 把ip1 绑定到eni1,elastic ip->选中IP->associate->resource type:network interface -> private ip 自动选择
- 把ip2 绑定到eni2,此处省略步骤
- 把eni1绑定到ec2，network interface 页面->选择eni1->attach-> 选择 ec2 instance id
- 把eni2绑定到ec2,此处省略步骤
- 在ec2 instance 页面,看到iP里面公网IP只有一个，private ip 有2个
- 为什么少了一个?用putty connnect 这个两个ip，都是没有问题，ec2 的console不显示而已
1[ec2-user@ip-172-31-1-176 ~]$ ifconfig
2eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9001
3 inet 172.31.1.176 netmask 255.255.255.0 broadcast 172.31.1.255
4 inet6 fe80::8a:93ff:fefd:ef5c prefixlen 64 scopeid 0x20<link>
5 ether 02:8a:93:fd:ef:5c txqueuelen 1000 (Ethernet)
6 RX packets 4115218 bytes 1170825027 (1.0 GiB)
7 RX errors 0 dropped 0 overruns 0 frame 0
8 TX packets 3592874 bytes 8202330562 (7.6 GiB)
9 TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
10
11eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9001
12 inet 172.31.1.87 netmask 255.255.255.0 broadcast 172.31.1.255
13 inet6 fe80::f1:16ff:fefa:1bba prefixlen 64 scopeid 0x20<link>
14 ether 02:f1:16:fa:1b:ba txqueuelen 1000 (Ethernet)
15 RX packets 333 bytes 26643 (26.0 KiB)
16 RX errors 0 dropped 0 overruns 0 frame 0
17 TX packets 286 bytes 33695 (32.9 KiB)
18 TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
19
20lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
21 inet 127.0.0.1 netmask 255.0.0.0
22 inet6 ::1 prefixlen 128 scopeid 0x10<host>
23 loop txqueuelen 1000 (Local Loopback)
24 RX packets 10549 bytes 8263339 (7.8 MiB)
25 RX errors 0 dropped 0 overruns 0 frame 0
26 TX packets 10549 bytes 8263339 (7.8 MiB)
27 TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0