<HTML><BODY>Hello, bitvisor developers! Our team realized VPN main mode PSK for IPv4 in Bitvisor project. We have successfully set up an IPSec tunnel with Strongswan and Windows Server 2008 R2 VPN servers. Now we are developing certificates main mode. If these patches are interesting for bitvisor developers, we are ready to share code of VPN main mode PSK. Best Regards, Mikhael Scientific Technical Center "Atlas" </BODY></HTML>