strongSwan

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":http://tools.ietf.org/html/rfc4869. For Windows configuration details see http://support.microsoft.com/kb/949856/.

The following command sets the IKEv1 main mode algorithms:

<pre>

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

</pre>

The currently configured algorithms can be checked using the command:

<pre>

netsh advfirewall show global

Main Mode:

KeyLifetime  480min,0sess

SecMethods   ECDHP256-AES128-SHA256,ECDHP384-AES192-SHA384,DHGroup14-AES128-SHA1

ForceDH      No

</pre>

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

<pre>

ike=aes128-sha256-ecp256!

</pre>

or for the DH group 20 ECP_384

<pre>

ike=aes192-sha384-ecp384!

</pre>

<pre>

netsh advfirewall consec set rule name="VPN ECP" new qmsecmethods=esp:aesgcm192-aesgcm192,esp:aesgcm128-aesgcm128,esp:sha1-aes128

</pre>

<pre>

netsh advfirewall consec show rule name="VPN ECP"

Rule Name:                            VPN ECP

----------------------------------------------------------------------

Enabled:                              Yes

Profiles:                             Domain,Private,Public

Type:                                 Static

Mode:                                 Tunnel

LocalTunnelEndpoint:                  Any

RemoteTunnelEndpoint:                 10.10.0.1

Endpoint1:                            10.10.0.6/32

Endpoint2:                            10.10.1.0/24

Protocol:                             Any

Action:                               RequireInRequireOut

Auth1:                                ComputerCert

Auth1CAName:                          C=CH, O=strongSwan Project, CN=strongSwan 2009 CA

Auth1CertMapping:                     No

Auth1ExcludeCAName:                   No

Auth1CertType:                        Root

Auth1HealthCert:                      No

MainModeSecMethods:                   ECDHP256-AES128-SHA256,ECDHP384-AES192-SHA384,DHGroup14-AES128-SHA1

QuickModeSecMethods:                  ESP:AESGCM192-AESGCM192+60min+100000kb,ESP:AESGCM128-AESGCM128+60min+100000kb,ESP:SHA1-AES128+60min+100000kb

ExemptIPsecProtectedConnections:      No

ApplyAuthorization:                   No

Ok.

</pre>

<pre>

esp=aes128gcm16!

</pre>

<pre>

esp=aes192gcm16!

</pre>