H3C Technologies H3C SR8800 - Manual (Page 199)

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• Log information with severity higher than informational will be output to the log host.
• The source modules are ARP and IP.
Figure 61 Network diagram
Configuration procedure
Before the configuration, make sure that there is a route between Device and PC.
1. Configure Device
# Enable information center.
<Sysname> system-view
[Sysname] info-center enable
# Specify the host with IP address 1.2.0.1/16 as the log host, use channel loghost to output log
information (optional, loghost by default), and use local4 as the logging facility.
[Sysname] info-center loghost 1.2.0.1 channel loghost facility local4
# Disable the output of log, trap, and debugging information of all modules to the log host.
[Sysname] info-center source default channel loghost debug state off log state off
trap state off
CAUTION:
As the default system configurations for different channels are different, you need to disable the output of
log, trap, and debugging information of all modules on the specified channel (loghost in this example)
first and then configure the output rule as needed so that unnecessary information will not be output.
# Configure the information output rule: allow log information of ARP and IP modules with severity
equal to or higher than informational to be output to the log host. (Note that the source modules
allowed to output information depend on the router model.)
[Sysname] info-center source arp channel loghost log level informational state on
[Sysname] info-center source ip channel loghost log level informational state on
2. Configure the log host
The following configurations were performed on SunOS 4.0 which has similar configurations to
the Unix operating systems implemented by other vendors.
a. Log in to the log host as a root user.
b. Create a subdirectory named Device under directory /var/log/, and create file info.log under
the Device directory to save logs of Device.
# mkdir /var/log/Device
# touch /var/log/Device/info.log
c. Edit file /etc/syslog.conf and add the following contents.
# MyDevice configuration messages
local4.info /var/log/Device/ info.log
In the above configuration, local4 is the name of the logging facility used by the log host to
receive logs. info is the information level. The Unix system will record the log information with
severity level equal to or higher than informational to file /var/log/Device/info.log.