[Openswan Users] Openswan to Sonicwall - IKE config incorrect

Peter Butler Peter.Butler at it-freedom.com
Thu Mar 12 08:39:52 EDT 2009

Hi There

I'm trying to connect from Openswan (version 2.4.12) on Ubuntu Intrepid
(Kernel 2.6.27-11) to a Sonicwall LS2400 and I am getting a
NO_PROPOSAL_CHOSEN response from Sonicwall. When I run ipsec auto
--status I get the following as part of the output:

000 "home":   IKE algorithms wanted:
3DES_CBC(5)_000-SHA1(2)-MODP1024(2); flags=strict
000 "home":   IKE algorithms found:
000 "home":   ESP algorithms wanted: 3DES(3)_000-SHA1(2); flags=strict
000 "home":   ESP algorithms loaded: 3DES(3)_000-SHA1(2); flags=strict

From what I can see Openswan is trying to use a different algorithm for
IKE from what Sonicwall is expecting. My ipsec.conf contains:


What should I be using for this instead? Is there any way to disable
"strict"? Any help would be greatly appreciated. I can post the output
of "ipsec barf" if anyone wants to take a closer look.



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