IPSec & TLS

Question 1

What is the defense against IP Spoofing

Answer 1

IPSEC

Question 2

What are the 2 modes of IPSec

Answer 2

Tunnel mode and Transport mode

Question 3

In Transport Mode, where does the IPsec header go?

Answer 3

after the original IP header

Question 4

What part of the internet message gets encrypted by IPsec in Transport Mode?

Answer 4

TCP header and Data

Question 5

What is the Authentication Header for? and when does the AH get applied?

Answer 5

If you want to encrypt the IP header too. it gets applied after ESP encrypts the message and then AH authenticates it

Question 6

What is Internet Key Exchange for?

Answer 6

this is used to allow two parties to agree on security policies and parameters for their exchanged traffic. It also establishes shared keys between them.