Tässä kappaleessa esimerkkikonfiguraatio Freeswanin ja Draytek Vigor:in välille käyttäen PSK:ta. Vigor ei tue RSA:ta. Esimerkissä Vigor toimii soittavana osapuolena.
# Left ipsec.conf version 2.0 config setup klipsdebug=none plutodebug=none overridemtu=1400 fragicmp=no conn %default keyingtries=3 # OE policy groups are disabled by default conn block auto=ignore conn clear auto=ignore conn private auto=ignore conn private-or-clear auto=ignore conn clear-or-private auto=ignore conn packetdefault auto=ignore conn vigor type=tunnel left=<left static ip-address> leftsubnet=192.168.20.0/24 leftnexthop=<left gateway ip-address> right=80.223.14.90 rightsubnet=192.168.1.0/24 auto=add pfs=yes authby=secret # end of Left ipsec.conf ------------------------------ # Left ipsec.secrets <left static ip-address> <right static ip-address>: PSK "1234" # end of Left ipsec.secrets ------------------------------ # Right (Draytek Vigor configuration) Muuten oletuksilla, mutta seuraavat muutokset VPN and Remote Access Setup LAN-to-LAN Profile Setup Index 1 1. Common settings Profile name: "Vigor" Enable this profile 2. Dial-Out Settings IPSec Tunnel Server IP/Host name: <left static ip-address> IKE PRE-Shared Key: 1234 IPSec Security Method: High (ESP) 3DES with authentication Advance: Perfect forward secret: Enable 4. TCP/IP Settings My WAN IP: 0.0.0.0 Remote Gateway IP: 0.0.0.0 Remote Network IP: 192.168.20.0 Remote Network Mask: 255.255.255.0 # End of Vigor configuration