we have a Cisco VPN3000 concentrator and a Crypto-Server radius box for authentication of the users. This setup was working fine for a number of months and is now playing up, users in existing groups (with one exception) and newly created groups will not authenticate:
I am seeing a lot of the following errors in the event log on the VPN Concentrator:47114 10/17/2007 14:40:31.980 SEV=5 AUTH/2 RPT=42558 Unable to open socket: server = 192.168.1.50, error = -9 ("ENOBUFS")
47115 10/17/2007 14:40:31.980 SEV=4 AUTH/15 RPT=42701 Server name = 192.168.1.50, type = RADIUS, group = Group_Name, status = Not-in-service
I have spent a few hours on the phone to the guys at CryptoCard and it appears that the radius server isn't recieving any authentication requests from the VPN concentrator. none of the servers appear to be under any serious load. Has anyone come accross an issue like this before?