Windows Suite B Support with IKEv1 » History » Version 3

Version 2 (Andreas Steffen, 08.07.2009 09:38) → Version 3/26 (Andreas Steffen, 08.07.2009 22:42)

h1. Windows Suite B Support

Windows Vista Service Pack 1, Windows Server 2008 and Windows 7 support the Suite B cryptographic algorithms for IPsec defined by "RFC 4869": Suite B. For Windows configuration details see

The following command sets the IKEv1 main mode algorithms:

netsh advfirewall set global mainmode mmsecmethods ecdhp256:aes128-sha256,ecdhp384:aes192-sha384,dhgroup14:aes128-sha1

The currently configured algorithms can be checked using the command:

netsh advfirewall show global

Main Mode:
KeyLifetime 480min,0sess
SecMethods ECDHP256-AES128-SHA256,ECDHP384-AES192-SHA384,DHGroup14-AES128-SHA1
ForceDH No

On the strongSwan side the following entries are required in ipsec.conf for the DH group 19 ECP_256


or for the DH group 20 ECP_384