cisco 200-301 lab manual

cisco 200-301 lab manual.The user (user) specifies the actual NMSo the authentication credentials specify the HMAC signature function and key used to create the signature, and the permission credentials specify the encryption algorithm and key to be used.The following is a simple example of an SNMPv3 configuration.Chapter 17 Cisco Device Management Protocol 437IOS(config)# access-list 10 permit host 10.0.1.12 IOS(config)# smnp-server view myview interfaces included IOS(config)# smnp-server group mygroup v3 priv read myview access 10 IOS(config)# smnp-server user myuser mygroup v3 auth sha a3fh95tllapriv aes 128 dkfjiewokd892a IOS(config)# snmp-server host 10.0.1.12 traps version 3 auth myuser IOS(config)# snmp-server enable trapsIn this example, an SNMP view is created that contains MIB/OIDinterfaces. An SNMP grouping is created that uses SNMPv3 and has read-only access to the view. In this grouping, access to SNMPv3 is specified using the view and ACL. The SNMP user specifies the access credentials and the grouping to use. When defining the SNMP server, it is specified that traps can be sent to it, and the SNMP user is specified to let the router know the access restriction method to use. Finally, SNMPtrap is enabled, allowing the router to send events to the SNMP management workstation.Authentication Target 17.0417.4 LoggingAn event is when something happens (e.g., someone logs in); an incident is when something goes wrong (e.g., someone logs in without authorization). Logging plays a critical role in management and security solutions. While SNMP supports traps, the number of traps is limited: in addition to SNMPtrap, there are numerous other types of messages supported by 0 logs. By writing logs to a syslog server, it is easier to manage the log messages and history of a large number of devices. Syslog uses UDP, running on port 514 ±o However, it sends all log messages in plaintext and does not check packet integrity, making it easy for hackers to send false data to the syslog server. Therefore, it is highly recommended that messages transmitted between network devices and the syslog server be encrypted and that filters be set on the syslog server so that it only accepts log messages from specific IP addresses.By default, log messages are sent to the router's controller port, but it is also supported to send them to the following places: terminal lines, internal buffers, SNMPtrap, and the syslog server. Administrators typically send logs to the log buffer (RAM), console terminal, or syslog server, but sending to the syslog server is most common because it allows you to easily centralize log messages to a single server. The advantage of using syslog is that log messages can be stored on the syslog server's hard disk (rather than on the router), avoiding tying up router resources. The next few subsections briefly describe the logging feature and how to configure it in the CLI.