I have 2 questions regarding IPSec. This is the last 2 optional questions of my homework:

  1. Scenario when combining AH and ESP can be needed?
  2. Scenario when combining Tunnel and Transport modes can be needed?

These are the optional questions, but I am just curious and can't answer on my own.

1 Answer 1


#1 Transport Adjacency This is where you need the entire packet authenticated but also in ESP transport mode.

#2 Dynamic routing This is what happens when you need the tunnel end-to-end, but need the path through the untrusted network to be dynamically assigned (i.e. resiliency).

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