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One of the AnyConnect document mentions that due to architectural changes on Symantec products, the remediation is not supported. Would like to check on what version of AnyConnect will it be supported.
Please check with the author of the doc.
Cisco Identity Services Engine - Compatibility Information - Cisco has a section for Cisco AnyConnect Agent Compliance Module and the latest Cisco AnyConnect ISE Posture Windows Support Charts for Compliance Module v4.3.642.6144 indicates a few Symantec product names and versions with remediation support.
I referred the link and as per the compatibility matrix, Symantec 12.x is supported but the AC 4.6 document says it's not supported. So need clarification on what version it will be supported.