Инструкция для ZYXEL GS2200-24P

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Chapter 32 Access Control

GS2200-24 User’s Guide

286

Security

Level

Select whether you want to implement authentication and/or encryption
for SNMP communication from this user. Choose:

• noauth -to use the username as the password string to send to the

SNMP manager. This is equivalent to the Get, Set and Trap

Community in SNMP v2c. This is the lowest security level.

• auth - to implement an authentication algorithm for SNMP messages

sent by this user.

• priv - to implement authentication and encryption for SNMP

messages sent by this user. This is the highest security level.

Note: The settings on the SNMP manager must be set at the same

security level or higher than the security level settings on the
Switch.

Authenticati

Select an authentication algorithm. MD5 (Message Digest 5) and SHA
(Secure Hash Algorithm) are hash algorithms used to authenticate
SNMP data. SHA authentication is generally considered stronger than
MD5, but is slower.

Privacy

Specify the encryption method for SNMP communication from this user.
You can choose one of the following:

• DES - Data Encryption Standard is a widely used (but breakable)

method of data encryption. It applies a 56-bit key to each 64-bit

block of data.

• AES - Advanced Encryption Standard is another method for data

encryption that also uses a secret key. AES applies a 128-bit key to

128-bit blocks of data.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The
Switch loses these changes if it is turned off or loses power, so use the
Save link on the top navigation panel to save your changes to the non-
volatile memory when you are done configuring.

Cancel

Click Cancel to begin configuring this screen afresh.

Table 90

Management > Access Control > SNMP (continued)

LABEL

DESCRIPTION