HP 7000 dl Router Series Guida Utente Scaricare il pdf (Pagina 400)

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SROS Command Line Interface Reference Guide Crypto Map IKE Command Set

Technology Review

A crypto map entry is a single policy that describes how certain traffic is to be secured. There are two

types of crypto map entries: ipsec-manual and ipsec-ike. Each entry is given an index, which is used to sort

the ordered list.

When a non-secured packet arrives on an interface, the crypto map set associated with that interface is

processed in order. If a crypto map entry matches the non-secured traffic, the traffic is discarded.

When a packet is to be transmitted on an interface, the crypto map set associated with that interface is

processed in order. The first crypto map entry that matches the packet will be used to secure the packet.

If a suitable SA exists, that is used for transmission. Otherwise, IKE is used to establish an SA with the

peer. If no SA exists, and the crypto map entry is “respond only”, the packet is discarded.

When a secured packet arrives on an interface, its SPI is used to look up an SA. If an SA does not exist,

or if the packet fails any of the security checks (bad authentication, traffic does not match SA selectors,

etc.), it is discarded. If all checks pass, the packet is forwarded normally.

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HP 7000 dl Router Series Guida Utente Pagina 400

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