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]