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Why does use of end-to-end (i.e. host to host) ESP (Encapsulating Security Payload) SAs (Security Associations) cause problems for firewalls?
Why does use of end-to-end (i.e. host to host) ESP (Encapsulating Security Payload) SAs (Security Associations) cause problems for firewalls? Why does use of end-to-end ESP SAs cause problems for NATs?