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Frontera
física o lógica que define un dominio de seguridad o zona en la que se aplica
una determinada política de seguridad o se ha implantado una determinada
arquitectura de seguridad.
An Electronic
Security Perimeter (ESP) refers to the demarcation point between a secured
enclave. such as a control system. and a less trusted network. such as a
business network. The ESP typically includes those devices that secure that
demarcation point. including firewalls. IDS. IPS. industrial protocol filters.
application monitors. and similar devices. [knapp:2014]
The logical
border surrounding a network to which BES Cyber Systems are connected using a
routable protocol. [NERC:2014]
The ability to
access a BES Cyber System from a Cyber Asset that is outside of its associated
Electronic Security Perimeter via a bi-directional routable protocol
connection. [NERC:2014]
The physical
border surrounding locations in which BES Cyber Assets, BES Cyber Systems, or
Electronic Access Control or Monitoring Systems reside, and for which access is
controlled. [NERC:2014]
A physical or
logical boundary that is defined for a system, domain, or enclave; within which
a particular security policy or security architecture is applied. [CNSSI_4009:2010]
(I) A physical or
logical boundary that is defined for a domain or enclave and within which a
particular security policy or security architecture applies. (See: insider,
outsider.) [RFC4949:2007]
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