The new set of standards, IKEv2 requires less back and forth chatter between the devices and because IKEv2 is less complex,
it is considered less vulnerable to attack.
key practical benefit is that because it is simpler, it will be easier
to configure and deploy, making IPSec VPNs more attractive to smaller
businesses that don't have the technical expertise to properly deploy
the original IKE technology.
is also good news for interoperability. Because the protocol is
simpler, IKEv2 can make it easier to establish tunnels between VPN
equipment made by different vendors. So VPNs among business partners,
suppliers and customers are easier to set up.
Looks good… I've always disliked doing IPSEC VPNs, even thought that's all I did for a year. Read the full article on Network World.