topic VSX R80.40 - Remote access and RADIUS in Firewall and Security Management

VSX R80.40 - Remote access and RADIUS

Alex- — Sun, 23 Aug 2020 19:41:05 GMT

I've been configuring remote access on VSX R80.40 with the latest GA Take. Both TLS portal and Mobile clients work with username/password, and I've been following the various documentations to configure RADIUS authentication.

However as soon as I try with RADIUS authentication set, it immediately fails with "1st factor RADIUS - Server not responding".

In $FWDIR/log/vpnd.elg, there is the message that no RADIUS servers are responding. The thing is that I don't see any logs or fw monitor which show any RADIUS packets being sent by the VS, a tcpdump on the RADIUS server doesn't either. In terms of connectivity, it's all good, ping from the VS to the RADIUS goes through another VS and there it works.

If I switch back to username/password (provided by Identity Collector), it works immediately.

I'm probably missing something here, any hint would be appreciated.

Re: VSX R80.40 - Remote access and RADIUS

PhoneBoy — Mon, 24 Aug 2020 03:10:42 GMT

@Royi_Priov any suggestions here?

Re: VSX R80.40 - Remote access and RADIUS

Royi_Priov — Mon, 24 Aug 2020 06:03:46 GMT

I suggest investigating with TAC.

Re: VSX R80.40 - Remote access and RADIUS

JanVC — Mon, 24 Aug 2020 07:47:04 GMT

in the settings on the VS firewall object you can choose who goes to the RADIUS server, VS0 (default) or the VS in question where you configured the RADIUS setup

EDIT: added crappy screenshot

VS settings => Other => Legacy Authentication => Shared to Private

Re: VSX R80.40 - Remote access and RADIUS

Alex- — Mon, 24 Aug 2020 08:44:51 GMT

Thanks, looks like it was it, now to troubleshoot the RADIUS side.

Re: VSX R80.40 - Remote access and RADIUS

Matlu — Thu, 30 Oct 2025 17:54:22 GMT

Hello, @Alex-
In VSX, when you need to integrate a RADIUS server for authenticating remote VPN connection users, is this configuration done from the VS CLI that works with the IPsec VPN blade? Or where is the configuration done?
Can the “integration” of a Radius server be done through SmartConsole?
Thank you for your comments.

Re: VSX R80.40 - Remote access and RADIUS

Alex- — Tue, 04 Nov 2025 09:40:06 GMT

It's all done in the Smart Console.

Re: VSX R80.40 - Remote access and RADIUS

jaymith — Sat, 24 Jan 2026 11:54:26 GMT

Hi Alex

Did you get a solution to it? After legacy authentication change the access request was accepted, but still cannot login. Any ideas?