3Com WX4400 Reference Manual page 199

b If you select Hex or IP, type the hexadecimal string or IP address in the
Value box and click Next and go to step 5. Otherwise, click Finish.
5 Select the authentication type used to authenticate communications with
the remote SNMP engine:
None—No authentication is used. This is the default.
MD5—Message-digest algorithm 5 is used.
SHA—Secure Hashing Algorithm (SHA) is used.
6 If you select MD5 or SHA, you can specify a passphrase or a hexadecimal
key:
a Select the format from the Format pull-down list.
b Type the value in the Password box.
If you selected Key as the format, type a 16-byte hexadecimal
string for MD5 or a 20-byte hexadecimal string for SHA.
If you selected Pass Phrase as the format, type a string at least 8
characters long.
7 Select the encryption type used for SNMP traffic:
None—No encryption is used. This is the default.
DES—Data Encryption Standard (DES) encryption is used.
3DES—Triple DES encryption is used.
AES—Advanced Encryption Standard (AES) encryption is used.
8 If you select DES, 3DES, or AES, you can specify a passphrase or a
hexadecimal key:
a Select the format from the Format pull-down list.
b Type the value in the Password box.
If you selected Key as the format, type a 16-byte hexadecimal
string.
If you selected PassPhrase as the format, type a string at least 8
characters long for DES or 3DES, or at least 12 characters long for
AES.
9 Click Finish.
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