CCNA LAB 59: Configuring IOS Device Logging to a SYSLOG Server

小乔

Lab Objective:
The objective of this lab exercise is for you to learn and understand how to configure Cisco IOS devices to send log messages to a SYSLOG server.


Lab Purpose:
Configuring Cisco IOS devices to send logging information to a SYSLOG server is a fundamental skill. In most networks, a SYSLOG server is present and devices are configured to send log messages to this central repository. Users or groups managing this central repository can therefore see alarms from devices and act accordingly to address the issues. As a Cisco engineer, as well as in the Cisco CCNA exam, you will be expected to know how to configure Cisco IOS devices to send log messages to SYSLOG servers.

Certification Level:
This lab is suitable for CCENT and CCNA certification exam preparation.

Lab Difficulty:
This lab has a difficulty rating of 5/10.

Readiness Assessment:
When you are ready for your certification exam, you should complete this lab in no more than 5 minutes.

IMPORTANT NOTE: The objective of this lab is to simply familiarize you with the steps required to configure a Cisco IOS device to send log messages to a SYSLOG server. Because there will be no real SYSLOG server configured against which to perform testing, the sole objective of this lab is command familiarity.

Lab Topology:
Please use the following topology to complete this lab:



Task 1:
Configure the hostnames on R3 and Sw1 as illustrated in the topology.

Task 2:
At this stage, we know that by default, all interfaces on a Cisco Catalyst Switch are in VLAN1. Therefore, simply enable interfaces FastEthernet0/2 and FastEthernet0/3 on Sw1.

Task 3:
Configure R3 to send SYSLOG messages up to Level 7 to the SYSLOG server 192.168.254.254.

Task 4:
Verify your SYSLOG configuration on R3 using the show logging command.

Configuration and Verification
Task 1:
For reference information on configuring hostnames, please refer to earlier labs.

Task 2:
Sw1#config t
Enter configuration commands, one per line.  End with CTRL/Z.
Sw1(config)#interface fastethernet0/2
Sw1(config-if)#no shutdown
Sw1(config-if)#exit
Sw1(config)#interface fastethernet0/3
Sw1(config-if)#no shutdown
Sw1(config-if)#^Z
Sw1#
Task 3:
R3#conf t
Enter configuration commands, one per line.  End with CTRL/Z.
R3(config)#logging trap debugging
R3(config)#logging host 192.168.254.254
R3(config)#end
R3#
NOTE: When configuring logging levels, you can use the number or the keyword for the specific level for which you want to enable logging. You can view the correlation between numbers and keywords by using a question mark after the logging trap command as illustrated below:

R3(config)#logging trap ?
<0-7>          Logging severity level
alerts         Immediate action needed           (severity=1)
critical       Critical conditions               (severity=2)
debugging      Debugging messages                (severity=7)
emergencies    System is unusable                (severity=0)
errors         Error conditions                  (severity=3)
informational  Informational messages            (severity=6)
notifications  Normal but significant conditions (severity=5)
warnings       Warning conditions                (severity=4)
Task 4:
R3#show logging
Syslog logging: enabled (0 messages dropped, 1 messages rate-limited, 0 flushes, 0 overruns, xml disabled)
  Console logging: disabled
  Monitor logging: level debugging, 0 messages logged, xml disabled
  Buffer logging: disabled, xml disabled
  Logging Exception size (4096 bytes)
  Count and timestamp logging messages: disabled
  Trap logging: level debugging, 33 message lines logged
    Logging to 192.168.254.254, 1 message lines logged, xml disabled
NOTE: Logging using a level of 7 indicates that the device will send logs for all other levels. If you had a SYSLOG server and performed a configuration task on the router, you would see the log messages on the SYSLOG server.




来源: CCNA LAB 49: Configuring Passwords on Catalyst Switches
来源: CCNA LAB 50: Permitting Telnet Access to Catalyst IOS Switches
来源: CCNA LAB  51: Permitting Telnet Access to Catalyst IOS Switches—Login Local
来源: CCNA LAB 52: Permitting Console Access to Catalyst IOS Switches—Login Local
来源: CCNA LAB  53: Configuring an Enable Secret Password and Exec Timeout on Catal...
来源: CCNA LAB 54: Configuring User Privileges on Cisco IOS Devices
来源: CCNA LAB 55: Configuring Command and Password Privilege Levels on Devices
来源: CCNA LAB 56: Configuring MOTD Banners
来源: CCNA LAB 57: Changing the Configuration Register on Cisco IOS Devices
来源: CCNA LAB 58: Configuring SSH Access/Disable Telnet Access

wuman

來學習了

呀小亮

感谢楼主的分享