Comprehensive and Detailed 200 to 250 words of Explanation From HCIP Datacom Campus Network documents knowledge without any URL or Links:
IPsec defines two standard encapsulation modes that determine how IP packets are protected during transmission:Tunnel modeandTransport mode. Tunnel mode encapsulates the entire original IP packet within a new IP header and is typically used forsite-to-site VPNs. Transport mode encrypts only the payload of the IP packet and is commonly used forhost-to-host communication.
Switching mode and routing mode are not valid IPsec encapsulation modes and are unrelated to IPsec protocol behavior.
According to HCIP Datacom Campus Network documentation, onlyTunnel mode and Transport modeare supported in IPsec, makingoptions B and C correct.
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