DaveGuenthner manoth_msft I have been scouring through blogs and documentation but I am not able to find IP Ranges for officecdn to use for Office 365 Updates. We unfortunately have a limitation where we need to split tunnel using only IP addresses and not FQDN for our Office 365 Updates to use public internet for clients connected over VPN. Our original plan was to use CMG to deploy the updates but turns out Office 365 Updates (CDN content) are not supported over CMG\cloud Distribution points. The only alternative is to allow our clients to download the updates over the internet but in order to do that we need the IP ranges for the office CDN. We have been discussing creating an installation package for the update that we would then deploy through the CMG but the package would have a very complex logic for X86 or X64, with or without Visio\Project etc. Hoping you can point me in the right direction to find the IP ranges for the officecdn for updates.