AWS EC2 Enable Secondary IPs
Here’s how to enable secondary private IPs for AWS EC2 instances.
- Add secondary private IPs to the instance.
- Editing the instance Networking > Manage IP Addresses.
- Add new private IP addresses.
- Save.
- Set the route configuration for each secondary IP address.
- Config files are ifcfg-eth0:0, ifcfg-eth:0.1 and so on.
- Test each interface or IP to see if they respond to ping.
- /etc/sysconfig/network-scripts/
ifcfg-eth0:0
<pre lang="bash">NM_CONTROLLED="no"
DEVICE="eth0:0"
ONBOOT="yes"
BOOTPROTO="static"
IPADDR="10.0.0.14"
NETMASK="255.255.255.255"
ifcfg-eth0:1
<pre lang="bash">NM_CONTROLLED="no"
DEVICE="eth0:1"
ONBOOT="yes"
BOOTPROTO="static"
IPADDR="10.0.0.15"
NETMASK="255.255.255.255"