http://www.macrumors.com/2013/04/05/apple-to-alter-vpn-on-demand-behavior-in-ios-6-1-and-later-due-to-virnetx-lawsuit/ Apple documentation: http://support.apple.com/kb/TS4550 The patent: http://www.google.com/patents/US6502135 The patent is dated 1998, which I'm pretty sure is after the FreeS/WAN and Opportunistic Encryption (and thus the IETF) work had started, which clearly designed and implemented what is described below: (1) generating from the client computer a Domain Name Service (DNS) request that requests an IP address corresponding to a domain name associated with the target computer; (2) determining whether the DNS request transmitted in step (1) is requesting access to a secure web site; and (3) in response to determining that the DNS request in step (2) is requesting access to a secure target web site, automatically initiating the VPN between the client computer and the target computer. _______________________________________________ IPsec mailing list [email protected] https://www.ietf.org/mailman/listinfo/ipsec
