[strongSwan] strange problem with migrate a ikev1 psk from openswan to strongswan

Andreas Steffen andreas.steffen at strongswan.org
Fri Apr 3 09:47:50 CEST 2015

Hi Falk,

without a logfile from the strongSwan side I cannot do any



On 04/03/2015 12:21 AM, Falk Hackenberger wrote:
> Hello,
> I have a very strange problem with a migration a ikev1 psk vpn from
> openswan to strongswan
> The old system have a Debian kernel 3.2.46-1+deb7u1~bpo60+1 with openswan
> 2.6.28+dfsg-5+squeeze2.
> Then new system is have a debian kernel 3.16.7-ckt7-1 (2015-03-01) with
> strongswan 5.2.1-5.
> On the old system the vpn connection have no problems.
> On the new system the ike exchange have no problem.
> But I get no answer to the esp packets.
> I knew that the esp packets arrive the other side which is a checkpoint.
> As the checkpoint is controlled by customer I cant debug there.
> Any Idea what is the reason for that problem?
> Thanks Falk
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Andreas Steffen                         andreas.steffen at strongswan.org
strongSwan - the Open Source VPN Solution!          www.strongswan.org
Institute for Internet Technologies and Applications
University of Applied Sciences Rapperswil
CH-8640 Rapperswil (Switzerland)

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