Relationship Between Ike And Ipsec; Protocols And Standards; Configuration Task List - HP A6600 Configuration Manual

Relationship between IKE and IPsec

Figure 101 Relationship between IKE and IPsec
Figure 101 illustrates the relationship between IKE and IPsec:
IKE is an application layer protocol using UDP and functions as the signaling protocol of IPsec.
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IKE negotiates SAs for IPsec and delivers negotiated parameters and generated keys to IPsec.
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IPsec uses the SAs set up through IKE negotiation for encryption and authentication of IP packets.
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Protocols and standards

These protocols and standards are relevant to IKE:
RFC 2408, Internet Security Association and Key Management Protocol (ISAKMP)
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RFC 2409, The Internet Key Exchange (IKE)
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RFC 2412, The OAKLEY Key Determination Protocol
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Configuration task list

Prior to IKE configuration, you must determine the following parameters:
The strength of the algorithms for IKE negotiation, namely the security protection level, including the
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identity authentication method, encryption algorithm, authentication algorithm, and DH group.
Different algorithms provide different levels of protection. A stronger algorithm means more
resistance to decryption of protected data but requires more resources. Generally, the longer the
key, the stronger the algorithm.
The pre-shared key or the certificate's PKI domain. For more information, see
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"Configuring PKI."