weiping deng wrote:
> Hi Both,
> 
> I have the following questions need your answer. Please help me, thanks.
> 
> Q1:
> About the NAT-T, whether strongswan supports: “Detecting and Honouring
> the NAT device changing its public address”?
>
In principle such a situation can be detected by observing a change
in the value of the NAT Detection payload contained in DPD messages
and the IPsec SA can then be updated using the MOBIKE (RFC 4555)
protocol. I'm not sure whether our MOBIKE implementation supports this
but Martin will know.

> Q2:
> About the DPD, in IKEv2, the default value of DPD timeout (dpdtimeout) = ?  
>
IKEv2 doesn't use IKEv1's dpdtimeout configuration parameter. It
just applies the regular retransmission scheme for IKE packets
(5 exponentially staggered retransmission) and if no answer is received
declares the peer dead after about 2 minutes.

> Look forward for your answer, thanks.
> 
> David

Regards

Andreas

======================================================================
Andreas Steffen                         [email protected]
strongSwan - the Linux VPN Solution!                www.strongswan.org
Institute for Internet Technologies and Applications
University of Applied Sciences Rapperswil
CH-8640 Rapperswil (Switzerland)
===========================================================[ITA-HSR]==
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