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Configuring Authentication

To configure an authentication algorithm, include the authentication statement and specify an authentication algorithm and a key at the [edit services ipsec-vpn rule rule-name term term-name then manual direction direction] hierarchy level:




authentication {
algorithm (hmac-md5-96 | hmac-sha1-96); 
key (ascii-text key | hexadecimal key);
}

The algorithm can be one of the following:

hmac-md5-96—Hash algorithm that authenticates packet data. It produces a 128-bit authenticator value and a 96-bit digest.
hmac-sha1-96—Hash algorithm that authenticates packet data. It produces a 160-bit authenticator value and a 96-bit digest.

The key can be one of the following:

ascii-text—ASCII text key. With the hmac-md5-96 option, the key contains 16 ASCII characters. With the hmac-sha1-96 option, the key contains 20 ASCII characters.
hexadecimal—Hexadecimal key. With the hmac-md5-96 option, the key contains 32 hexadecimal characters. With the hmac-sha1-96 option, the key contains 40 hexadecimal characters.

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