If using ISAKMP in IKE version 1, aggressive mode is disabled.
Topic
Internet Security Association Key Management Protocol modes
Applicable to
all
History
Priority
should
Mar 2022
Removed
The Internet Key Exchange version 1 (IKEv1) protocol was obsoleted by the IKE version 2 (IKEv2) protocol in December 2005. Since IKEv2 has now been widely adopted, and in doing so addresses various problems with IKEv1, approval for the use of IKEv1 as part of Internet Protocol security implementations has been rescinded.
2015
Agencies using ISAKMP in IKEv1 should disable aggressive mode.
2010
Agencies using ISAKMP should disable aggressive mode for IKE.
2008
Agencies using ISAKMP should disable aggressive mode for IKE.