[strongSwan-dev] Strongswan connection dropped

Andreas Steffen andreas.steffen at strongswan.org
Fri Aug 6 12:37:34 CEST 2010

Hi Wei,

are you using IKEv1 or IKEv2? Are you sure that network connectivity
is always guaranteed? Do you use Dead Peer Detection (DPD)? Do you
have any logs showing when the IPsec connection goes down?

Best regards


On 08/06/2010 11:37 AM, wei.you at orange-ftgroup.com wrote:
> Hello,
> I am using the strongswan 4.3.3 to secure tnftp over tcp, but now the
> problem is since the connection established, the connection can be
> dropped after like one day or one day and a half, that is to say it
> stops to encrypt, and with command /ipsec statusall,/ it shows there is
> no SA anymore, so if I launch ipsec up <conn> again, the SA comes back.
> My OS is linux 10.04 for both server and the client, so do you have any
> idea about this problem? Thanks~
> YOU Wei

Andreas Steffen                         andreas.steffen at strongswan.org
strongSwan - the Linux VPN Solution!                www.strongswan.org
Institute for Internet Technologies and Applications
University of Applied Sciences Rapperswil
CH-8640 Rapperswil (Switzerland)

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