USG210 VPN RADIUS Authentication failed
We have an L2TP VPN set up on the ZyXEL that uses a RADIUS server and Azure for MFA. We seem to get issues sometimes where the ZyXEL logs:
RADIUS: Rejecting rejecting the user 'email address'.
Is it possible to see why these are being rejected? It looks as though the authentication has been successful on the RADIUS server.
RADIUS: Rejecting rejecting the user 'email address'.
Is it possible to see why these are being rejected? It looks as though the authentication has been successful on the RADIUS server.
0
All Replies
-
Hi @jw708,
In authentication flow, USG-210 send access-request to Radius service for user authentication, and granted access if device receive Access-accept.
The USG-210 will react accordingly based on the response from Radius server.
In this case, you could check more detailed reject reason on Radius or MFA log for further diagnostic.
Grant access case:
Reject case:0 -
You can check "login users" table in monitor page if any user ID is display as email address.
If without email address listed in table, than log entry should be result. (rejected by RADIUS server)0
Categories
- All Categories
- 347 Beta Program
- 2.1K Nebula
- 114 Nebula Ideas
- 77 Nebula Status and Incidents
- 5K Security
- 44 USG FLEX H Series
- 246 Security Ideas
- 1.2K Switch
- 65 Switch Ideas
- 901 WirelessLAN
- 33 WLAN Ideas
- 5.8K Consumer Product
- 204 Service & License
- 326 News and Release
- 71 Security Advisories
- 21 Education Center
- 5 [Campaign] Zyxel Network Detective
- 1.8K FAQ
- 831 Nebula FAQ
- 401 Security FAQ
- 219 Switch FAQ
- 190 WirelessLAN FAQ
- 45 Consumer Product FAQ
- 136 Service & License FAQ
- 34 Documents
- 34 Nebula Monthly Express
- 71 About Community
- 61 Security Highlight