At network layer to ensure/implement the security IPSec protocol is used. Each host that is using the IPSec protocol needs to keep a Security Policy Database (SPD). When a packet is to be sent out, the outbound SPD is consulted. Given figure shows the processing of a packet by a sender. Write step by step procedure to explain the working of each step shown in the diagram.

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Segment Index Policy Outbound SPD Transport layer Вурass Drop Policy? Аpply Index Parameters IPSec layer Outbound SAD IP layer Yes No SA? IKE Datagram Segment Index Policy Outbound SPD Transport layer Вурass Drop Policy? Аpply Index Parameters IPSec layer Outbound SAD IP layer Yes No SA? IKE Datagram

Answer rating: 100% (QA)

The IP Security Architecture IPsec provides cryptographic protection for IP datagrams in IPv4 and IPv6 network packets The protection can include confidentiality strong integrity of the data partial s... View the full answer