How to find IP of DUO Radius Proxy

[nouman123]

Hello, while configuring the Radius server in Fortinet SSL VPN, we have to put IP address of DUO Radius IP.

But I’m not sure how we can find it. Please guide. Screenshot attached

[DuoKristina · Accepted solution]

It is the IP address of your organization’s on-premises server where you installed the Duo Authentication Proxy. Only the person from your organization who installed the Duo proxy software can tell you the IP of the server where they installed it.

[josip.maloca]

But, must we install NPS on that server? Without NPS it won't listen RADIUS port. 

"To integrate Duo with your RADIUS device, you will need to install a local Duo proxy service on a machine within your network. This Duo proxy server will receive incoming RADIUS requests from your RADIUS device, contact your existing local LDAP/AD or RADIUS server to perform primary authentication if necessary, and then contact Duo's cloud service for secondary authentication."

Part for secondary authentication it doesn't work for me