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ipsecah (7)
  • >> ipsecah (7) ( Solaris man: Макропакеты и соглашения )
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    NAME

    ipsecah, AH - IPsec Authentication Header
     
    

    SYNOPSIS

    drv/ipsecah
    

     

    DESCRIPTION

    The ipsecah module (AH) provides strong integrity, authentication, and partial sequence integrity (replay protection) to IP datagrams. AH protects the parts of the IP datagram that can be predicted by the sender as it will be received by the receiver. For example, the IP TTL field is not a predictable field, and is not protected by AH.

    AH is inserted between the IP header and the transport header. The transport header can be TCP, UDP, ICMP, or another IP header, if tunnels are being used. See tun(7M).  

    AH Device

    AH is implemented as a module that is auto-pushed on top of IP. The entry /dev/ipsecah is used for tuning AH with ndd(1M).  

    Authentication Algorithms

    Current authentication algorithms supported include HMAC-MD5 and HMAC-SHA-1. Each authentication algorithm has its own key size and key format properties. You can obtain a list of authentication algorithms and their properties by using the ipsecalgs(1M) command. You can also use the functions described in the getipsecalgbyname(3NSL) man page to retrieve the properties of algorithms.  

    Security Considerations

    Without replay protection enabled, AH is vulnerable to replay attacks. AH does not protect against eavesdropping. Data protected with AH can still be seen by an adversary.  

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    AvailabilitySUNWcsr
    Interface Stability

     

    SEE ALSO

    ipsecalgs(1M), ipsecconf(1M), ndd(1M), attributes(5), getipsecalgbyname(3NSL), tun(7M), ip(7P), ipsec(7P), ipsecesp(7P)

    Kent, S. and Atkinson, R.RFC 2402, IP Authentication Header, The Internet Society, 1998.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    AH Device
    Authentication Algorithms
    Security Considerations
    ATTRIBUTES
    SEE ALSO


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