Adding route permanently on Amazon Linux

Question

Hello,

I've 2 ENI on a Mate instance (Amazon Linux with GUI).
I would like to add a route on this instance and keep it after reboot.

Right now, I know how I can add a temporary route :

```
sudo ip route add 10.0.0.0/8 via 10.1.0.1
```

How can I proceed to keep this route after reboot ?

Answer

As root, create a file /etc/sysconfig/network-scripts/route-*[network_interface]* whose contents are either:

1. `10.0.0.0/8 via 10.1.0.1 dev [network_interface]`

2.
```
ADDRESS0=10.0.0.0
NETMASK0=255.0.0.0
GATEWAY0=10.1.0.1
```

Full details are in https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-configuring_static_routes_with_ip_commands

Option 1 https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-configuring_static_routes_in_ifcfg_files#bh-Static_Routes_Using_the_IP_Command_Arguments_Format

Option 2 https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-configuring_static_routes_in_ifcfg_files#bh-Static_Routes_Using_the_Network-Netmask_Directives_Format

Adding route permanently on Amazon Linux

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