Chapter 44 System
ZyWALL USG Series User’s Guide
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44.11.5 Add SNMPv3 User
Click Add under SNMPv3 in Configuration > System > SNMP to create an SNMPv3 user for authentication
with managers using SNMP v3. Use the username and password of the login accounts you specify in this
screen to create accounts on the SNMP v3 manager.
Add Click this to create a new entry. Select an entry and click Add to create a new entry after the
selected entry.
Edit Double-click an entry or select it and click Edit to be able to modify the entry’s settings.
Remove To remove an entry, select it and click Remove. The Zyxel Device confirms you want to remove
it before doing so. Note that subsequent entries move up by one when you take this action.
# This is the index number of the entry.
User This displays the name of the user object to be sent to the SNMP manager along with the SNMP
v3 trap.
Authenticati
on
This displays the authentication algorithm used for this entry. 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 This displays the encryption method for SNMP communication from this user. Methods available
are:
• 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.
Privilege This displays the access rights to MIBs.
• Read-Write - The associated user can create and edit the MIBs on the Zyxel Device, except
the user account.
• Read-Only - The associated user can only collect information from the Zyxel Device MIBs.
Service Control This specifies from which computers you can access which Zyxel Device zones.
Add Click this to create a new entry. Select an entry and click Add to create a new entry after the
selected entry. Refer to Table 375 on page 928 for details on the screen that opens.
Edit Double-click an entry or select it and click Edit to be able to modify the entry’s settings.
Remove To remove an entry, select it and click Remove. The Zyxel Device confirms you want to remove
it before doing so. Note that subsequent entries move up by one when you take this action.
Move To change an entry’s position in the numbered list, select the method and click Move to display
a field to type a number for where you want to put it and press [ENTER] to move the rule to the
number that you typed.
# This the index number of the service control rule.
The entry with a hyphen (-) instead of a number is the Zyxel Device’s (non-configurable) default
policy. The Zyxel Device applies this to traffic that does not match any other configured rule. It is
not an editable rule. To apply other behavior, configure a rule that traffic will match so the Zyxel
Device will not have to use the default policy.
Zone This is the zone on the Zyxel Device the user is allowed or denied to access.
Address This is the object name of the IP address(es) with which the computer is allowed or denied to
access.
Action This displays whether the computer with the IP address specified above can access the Zyxel
Device zone(s) configured in the Zone field (Accept) or not (Deny).
Apply Click Apply to save your changes back to the Zyxel Device.
Reset Click Reset to return the screen to its last-saved settings.
Table 381 Configuration > System > SNMP (continued)
LABEL DESCRIPTION
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