An organization wants to establish secure communications between its headquarters and remote offices through the internet. They require a tunneling solution that supports both encapsulation and encryption to ensure data privacy and security. Which protocol should they implement?
IPsec (Internet Protocol Security) is the correct answer because it is a protocol suite for securing Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session. IPsec includes protocols for establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic keys to be used during the session. IPsec can be used to create a secure tunnel for transmitting data between two locations over the public Internet, providing both encapsulation and encryption, crucial for protecting data in transit. GRE, while capable of encapsulation, does not provide encryption inherently, making it less suitable for scenarios demanding high security. RIP and BGP are routing protocols and do not provide tunneling or encryption functionalities.
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