Performance-based routing to MS Office 365 over Cisco Meraki SD-WAN.

Objective

What does the script do?

This script optimises routing to Microsoft Office 365 over Cisco Meraki SD-WAN.

How does the script do it?

The script checks MS online documentation, fetches up-to-date routes and automatically injects them into VPN Hub.
As a result, performance-based routing to Office 365 is enabled .

Implementation:

• The script retrieves up-to-date MS Office 365 IP addresses from the official Microsoft online documentation,
• Compares with currently configured IP addresses,
• Injects the new routes to Meraki Auto VPN,
• Deletes outdated routes from Meraki Auto VPN.

Presentation

Installation

1. Clone the repository

git clone https://github.com/SalnikovAndrey/performance-based-routing-to-office-365-over-meraki-sd-wan

2. Navigate into directory

cd performance-based-routing-to-office-365-over-meraki-sd-wan

3. Create the virtual environment

python3 -m venv venv

4. Start the virtual environment

source venv/bin/activate

5. Install requirements.txt

pip install -r requirements.txt 

Usage

This script has to be applied on the VPN Hub (MX has to be in Routed mode).
The script must be executed with the following flags:

1. API Key (-a):
2. Default gateway (-g):
3. NetworkID (VPN Concentrator) (-n):

python3 o365_sd_wan.py -a {API key} -n {NetworkID} -g {IP address}

Example:

python3 o365_sd_wan.py -a sdfh&8sdkfj2345234LKJFSDhjsdf -n L_13847134355 -g 192.168.1.1

- Get your OrganisationID:
https://dashboard.meraki.com/api/v0/organizations
- Get your NetworkID:
https://dashboard.meraki.com/api/v0/organizations/{OrganisationID}/networks

Important note:
The script injects routes with the description "O365 - X.X.X.X". Please, make sure that these descriptions remain unmodified and there are no other descriptions that contain the prefix "O365".