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Forum Discussion
IPSec VPN Deletes After One Hour
I can successfully open a tunnel between the Netgear VPN client and FVS318N VPN router. However after an hour, the VPN log on the router reports ISAKMP-SA expired and the tunnel goes down. I've inc...
I am using the VPN client on a Windows 8.1 desktop. After reviewing the links you provided, I have been adjusting the various SA Lifetimes in the router IPSec policies and in the VPN client. I must admit that I'm still not fully understanding them, but I have managed to get the tunnel to stay open for about four hours before it quits.
Does the 86400 seconds maximum in the client configuration indicate that 1 day is the maximum that an IPSec VPN tunnel is designed to stay up before it needs to be re-initiated by the remote user? What if someone wants to keep a tunnel up for 2 days, a week or even longer?
Thanks for your continued assistance!
Hi jxdomb,
What I know is that the SA Lifetime is the lifetime of the keys that the VPN tunnel uses to encrypt data. If the 86400 seconds has been reached then it negotiates a new key. If ever you have activity going on through the VPN tunnel, this will not be noticeable when the timers expire.
Let me share this link below that I found online and this might help you understand more about SA Lifetime:
Regards,
DaneA
NETGEAR Community Team
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