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IPSEC headers<br />

• Authentication Header (AH)<br />

—Connectionless autenticitet og integritet<br />

• transport mode<br />

• tunnel mode<br />

• Encapsulating Security Packet (ESP)<br />

—Confidentiality<br />

• transport mode<br />

• tunnel mode<br />

• Security Association (SA)<br />

—Simplex forbindelse<br />

—Identificerer algoritmer, nøgler og lifetime<br />

• Både AH og ESP har beskyttelse mod replay<br />

09/10/2012 ITU 7.41

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