Authentification RADIUS UDP PORT UNREACHABLE

[redouane143164]

Hello, I am currently experiencing an issue with my firewall during RADIUS authentication against a ClearPass server running on Linux; when I try to initiate a connection using an account, I get an "UDP port unreachable" message. Could you tell me how to resolve this problem?

[simonemantovani]

Hello

It seems that the Radius port on the Radius server is not listening; did you check on Radius server if everything is ok and also if the IP of your firewall (172.28.242.182) is configured as a radius client?

[redouane143164]

Hello,

Yes, the client has indeed registered my firewall as a client on their RADIUS server, but with every repeated authentication attempt, I only see Access-Request packets in the tcpdump—never a response from the RADIUS server to my firewall.