Relationship Between Ike And Ipsec; Protocols And Standards; Ike Configuration Task List - HP 12500 Series Configuration Manual

Relationship between IKE and IPsec

Figure 68 Relationship between IKE and IPsec
Figure 68 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.

Protocols and standards

RFC 2408, Internet Security Association and Key Management Protocol (ISAKMP)
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• RFC 2409, The Internet Key Exchange (IKE)
RFC 2412, The OAKLEY Key Determination Protocol
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IKE configuration task list

Determine the following parameters prior to IKE configuration:
The strength of the algorithms for IKE negotiation (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 PKI domain the certificate belongs to. For more information about PKI
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configuration, see
To configure IKE:
Task
Configuring a name for the local security gateway
Configuring an IKE proposal
Configuring an IKE peer
"Configuring PKI."
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Remarks
Optional.
Optional.
Required if you want to specify an IKE proposal for
an IKE peer to reference.
Required.