This is the destination-side duplicate address field in the extended-ACL notification trap, carrying the actual destination network address this extended entry authorizes traffic toward, mirroring cienaCesExtAclEntryNotifSrcInetAddr's role on the source side. An admin's audit trail built from these traps can reconstruct not just which sources were authorized but specifically which source-destination pairings were authorized together, since the extended ACL model apparently constrains both ends of a flow rather than just the source. For example, a trap showing both a source and this destination address together tells an auditor exactly which specific traffic pairing was newly permitted in that one extended-ACL change.