[Openswan Users] Different PFS setting but can connect success

Gbenga stjames08 at yahoo.co.uk
Wed Dec 19 09:44:16 EST 2007

set pfs=no on both sides. this ensures that neither of the vpn server request pfs.


----- Original Message ----
From: "Argon_Cheng at sdc.sercomm.com" <Argon_Cheng at sdc.sercomm.com>
To: users at openswan.org
Sent: Wednesday, 19 December, 2007 1:29:58 PM
Subject: Re: [Openswan Users] Different PFS setting but can connect success

        Is there anybody knows how to disable this feature?, I means, do not use PFS feature if I disable it. 
Best Regards
Argon Cheng
TEL: 86-512-67612332 ext: 1220 

Ruben Laban <r.laban at ism.nl> 
寄件人: users-bounces at openswan.org 
2007-12-19 16:40         
        收件人:        users at openswan.org 
        主旨:        Re: [Openswan Users] Different PFS setting but can connect success

On Wednesday 19 December 2007, Argon_Cheng at sdc.sercomm.com wrote:
>         I have two VPN stations(using openswan 2.4.4). I set PFS disable
> in left station while PFS enable in right station. But these two stations
> can establish VPN connection success. Is there anyone know the reason?

>From the ipsec.conf manpage:


Whether Perfect Forward Secrecy of keys is desired on the connection's keying 
channel (with PFS, penetration of the key-exchange protocol does not 
compromise keys negotiated earlier); Since there is no reason to ever refuse 
PFS, Openswan will allow a connection defined with pfs=no to use PFS anyway. 
Acceptable values are yes (the default) and no.

Ruben Laban
Systems and Network Administrator
r.laban at ism.nl
ISM eCompany
Van Nelleweg 1
Postbus 13043
3004 HA Rotterdam
+31 (0)10 243 6000 (tel)
+31 (0)10 243 6066 (fax)

Quality Solutions - Reliable Partner
Users at openswan.org
Building and Integrating Virtual Private Networks with Openswan: 

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