Netgear XCM8810 Chassis User Manual - Page 83
Users, Groups, and Security
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NETGEAR 8800 User Manual latestReceivedEngineTime for every authoritative engine it wants to communicate with. Comparing these objects with the values received in messages and then applying certain rules to decide upon the message validity accomplish protection against message delay or message replay. In a chassis, the snmpEngineID is generated using the MAC address of the MSM/MM with which the switch boots first. The snmpEngineID can be configured from the command line, but when the snmpEngineID is changed, default users revert back to their original passwords/keys, and non-default users are reset to the security level of no authorization, no privacy. To set the snmpEngineID, use the following command: configure snmpv3 engine-id SNMPEngineBoots can also be configured from the command line. SNMPEngineBoots can be set to any desired value but will latch on its maximum, 2147483647. To set the SNMPEngineBoots, use the following command: configure snmpv3 engine-boots Users, Groups, and Security SNMPv3 controls access and security using the concepts of users, groups, security models, and security levels. Users Users are created by specifying a user name. Depending on whether the user will be using authentication and/or privacy, you would also specify an authentication protocol (MD5 or SHA) with password or key, and/or privacy (DES, 3DES, AES) password or key. Before using the AES, 3DES users, you must install the SSH module and restart the snmpMaster process. See Installing a Modular Software Package on page 806 for information on installing the SSH module. To create a user, use the following command: configure snmpv3 add user [[hex ] | ] {authentication [md5 | sha] [hex | ]} {privacy {des | 3des | aes {128 | 192 | 256}} [[hex ] | ]} }{volatile} A number of default users are initially available. These user names are: admin, initial, initialmd5, initialsha, initialmd5Priv, initialshaPriv. The default password for admin is password. For the other default users, the default password is the user name. To display information about a user, or all users, use the following command: show snmpv3 user {[[hex ] | ]} Enabling the SNMPv3 default-user access allows an end user to access the MIBs using SNMPv3 default-user. To enable default-user, use the following command: enable snmpv3 default-user Chapter 3. Managing the Switch | 83
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