We have several VPN tunnels that connect Windows 2003 Servers to an AIX box. At the Windows servers we are using the Netgear FVS 318 (version 2.4 - 3.1) and on the AIX side we connect to a BSD box that functions as a VPN router. These tunnels are IPSec based with AES 256 encryption (Healthcare Information) and transfer data back and forth through FTP services. Some of the connections are getting Dropped at night when the system is Idle. The Netgears show the connection as Established but the AIX is unable to FTP into it, we have to go in and DROP then re-establish the connection on the Netgears, then all is good again.
We have 12 of these running and its getting tiresome to have to do this every morning. Before we throw the Netgears out and drop the big bucks on Cisco does anyone have any suggestions? I have of course set the IKE Keep Alive and the Ping IP address to the AIX Server.
Any help will be greatly appreciated,