FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
Vbharath_FTNT
Article Id 197705
Description
This article explains how to configure a FortiGate unit to send accounting interim updates to the Radius accounting server to update the status of an active session.

Solution
Use the following configuration:

config user radius
edit [name]
config accounting-server
edit 1
set status enable
set server [IP]
set secret [secret]
end
set acct-interim-interval [duration] duration between each interim update[600 to 86400 seconds]
end

Note: The Radius server must send the attribute “Acct-Interim-Interval=xxx” (seconds) in the access accept message.

Example configuration on Windows NPS server:

vbharat_FD35113_tn_FD35113-a.jpg

Acct-Interim-Interval attribute sent by the Radius server:

vbharat_FD35113_tn_FD35113-b.jpg

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