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Security Dictionary
Can't tell 'smtp' from 'snmp'? Find the precise meaning of these and hundreds of other security-related terms in our convenient and up-to-date Security Dictionary.
security gateway
(I) A gateway that separates trusted (or relatively more trusted)
hosts on the internal network side from untrusted (or less
trusted) hosts on the external network side. (See: firewall and
guard.)
(O) IPsec usage: "An intermediate system that implements IPsec
protocols." [R2401] Normally, AH or ESP is implemented to serve a
set of internal hosts, providing security services for the hosts
when they communicate with other, external hosts or gateways that
also implement IPsec.
