How to set up the firewall for the local RADIUS instance to connect to Portnox Cloud

In this topic, you will learn how to configure your firewall to make sure that the local RADIUS instance can communicate with the cloud RADIUS instances.

You need to open the following ports on your firewall:

FQDN Protocol Ports Direction
radius.portnox.com TCP 443 Outbound
rad-events-clear-prod-eastus.servicebus.windows.net TCP 443 Outbound
rad-events-clear-prod-westeu.servicebus.windows.net TCP 443 Outbound
devices-ingress-clear-prod-eastus.servicebus.windows.net TCP 443 Outbound
devices-ingress-clear-prod-westeu.servicebus.windows.net TCP 443 Outbound
cloudcentraalstoreprodus.blob.core.windows.net TCP 443 Outbound
cloudcentraalstoreprod.blob.core.windows.net TCP 443 Outbound
pnxeusprdclrinstallers.blob.core.windows.net TCP 443 Outbound
pnxweuprdclrinstallers.blob.core.windows.net TCP 443 Outbound
logs-consolidation-prod-eastus.servicebus.windows.net TCP 443 Outbound
logs-consolidation-prod-westeu.servicebus.windows.net TCP 443 Outbound
Note: These rules are relevant for local RADIUS revision 1.1.8 and above.

Additionally, if you want to use the CoA functionality with a local RADIUS Docker container, you must also open the following ports:

FQDN Protocol Ports Direction
portnox-centraal-prod.servicebus.windows.net TCP 80, 443, 5671, 5672 Outbound
portnox-centraal-prod-eastus.servicebus.windows.net TCP 80, 443, 5671, 5672 Outbound
Warning: Since Microsoft services can change their public IP addresses (as has happened in the past), we recommend avoiding the use of static IP addresses. Instead, use fully qualified domain names (FQDNs) as listed above.

If your firewall software does not support FQDNs or encounters issues, such as failing to recognize some IP addresses resolved from the FQDNs, you can use this official Azure script to retrieve the IP addresses associated with an Azure FQDN. You can then add all these IP addresses to the firewall instead of the FQDNs. However, be sure to regularly monitor connectivity and check for any updates, as Microsoft may add or remove IP addresses over time.