Iphone ipsec vpn linuxIn this post, I will configure an IPSEC VPN tunnel between Iphone using Aggressive mode.
A good guide on IPSEC is "Ipsec Illustrated" found here:
http://www.unixwiz.net/techtips/iguide-ipsec.htmlBasically, Aggressive mode uses less messages in phase1 to establish the tunnel than Main mode (3 vs 6) and it is less secure. Less secure in the fact that the ike identity is sent in clear text.
The IKE ID can be one of the ...