There was thee major issues which caused the config to not function, or caused compatibility issues with other versions of anyconnect and IOS. I will outline those technical details below: 1. Manually configured IKEv2 proposals must be linked with an IKEv2 policy; otherwise, the proposals are not used in the negotiation.However in the original There … More 3 rules: FlexVPN IKEv2 Anyconnect Remote

The issue came to my attention, after reading cisco article on IKEv2:  https://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_ikevpn/configuration/15-1mt/Configuring_Internet_Key_Exchange_Version_2.html Under the proposal section it states: >  “Manually configured IKEv2 proposals must be linked with an IKEv2 policy; otherwise, the proposals are not used in the negotiation” consequently when a proposal is manually configured, this must be called/linked to a policy for example: … More FlexVPN: AnyConnect IKEv2 Remote Access: Common Mistake