Skype for Business Endpoint

New Contributor

We are new to Office 365 and Skype for Business and are still struggling with opening all of the necessary ports on our firewall.

Our firewall needs to use URLs rather than IP Addresses. We have several IP Addresses that are still being blocked and I was wondering if anyone could give me the URLs that would be associated with the following IP Address:

Thank you in advance for your help with this matter!




3 Replies

Your users may run into various connectivity & performance issues when required IPs are not bypassed. Consider bypass proxy as well to have better connectivity to O365 directly.



Thank you!