Westermo MRD-3x0 - Manual (Page 124)

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IKE proposal
A set of parameters for Phase I IPSec negotiations. The param-
eters are encryption algorithm, authentication algorithm and
the Diffie-Hellman group.
Encryption Algorithm •
Select the encryption algorithm from the drop-
down list, the options are:
AES (128) 128 bit Advanced Encryption
Standard (AES).
AES (256) 256 bit Advanced Encryption
Standard (AES).
3DES Triple Data Encryption Standard (3DES).
DES Data Encryption Standard (DES).
Authentication Algorithm •
Select the authentication mode from the drop-
down list, options are:
MD5 Message-Digest algorithm 5.
SHA1 Secure Hash Algorithm.
Diffie-Hellman Group •
A cryptographic protocol which allows two
parties to establish a shared secret key over an
insecure network without the parties having any
prior knowledge of the other party. Select the
Diffie-Hellman Group from the drop-down list,
the options are:
DH Grp 1 (768) The 768 bit Diffie-Hellman
group.
DH Grp 2 (1024) The 1024 bit Diffie-Hellman
group.
DH Grp 5 (1536) The 1536 bit Diffie-Hellman
group.
DH Grp 14 (2048) The 2048 bit Diffie-Hellman
group.
IKE lifetime (mins)
Specify the IKE lifetime in minutes. Default is 60 minutes.