We have a cluster of 2 SG5900, with 2 internet links. we want to use the 2 links as below:
- link 1: primary link for O365 traffic and secondary for other traffic.
- link 2: secondary link for O365 and primary for other traffic.
My understanding is we will need to configured Policy Based Routing (Gaia OS) for this requirement.
However, O365 has a lot of IP addresses, which means we need to configure a lot of routes and policies in Gaia OS. Besides, O365 has some URLs (from the list provided by Microsoft Office 365 URLs and IP address ranges | Microsoft Docs), and their IP addresses/URLs may be changed anytime.
So could anyone suggest a smarter way to fulfill this requirement?