Jack Kohn writes:
From operational perspective if we are supporting both v4 and v6 (and we
will) then having different protocols ESP and AH is and will be a
nightmare. Common denominator is ESP-Null. However, there were issues with
ESP-Null as it couldnt be deep inspected which has now been
It will take several years before implementations start to implement
WESP, and even more years before hardware chips support WESP. Most of
the IPsec users are still using IKEv1, even when we published IKEv2
2005, i.e. 4 years ago. And IKEv2 draft was finished and publication
was requested
