Enterasys Aurorean ANG-3000 Installation & Service Manual page 93

Chapter 3
Installing Software & Setting Networking Configurables
Aurorean Installation & Service Guide
Figure 57 ANG IPsec Configuration Window
2 Choose the type of Primary Encryption to employ on the ANG.
Your choices are, in descending order of protection:
– Triple DES: Enables a version of DES (described below) that
employs a DES encryption with one key, a decryption with a
second key, and then another encryption with a third key. The
result is equivalent to DES with a 112-bit key.
– ARCFOUR-128: Enables a 128-bit key version of ARCFOUR
(described below).
– DES: Enables Data Encryption Standard (DES), a block cipher
method that uses 56-bit keys. Using DES, data is encrypted in
fixed-size blocks and packets are padded to become a multiple of
the block size.
– ARCFOUR-40: Enables a 40-bit key public domain algorithm that
is designed to work with Rivest Cipher 4 (RC4), a stream-based
cipher method that supports both 40-bit and 128-bit keys. Using
RC4, data packets can be encrypted as they are received instead
of in blocks.
Configuring the Remote ANG-3000/7000
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