D-Link DSL-2640B User Manual page 68

Section 7 - Tools
To configure the system log, click the Configure
System Log button.
From the configuration screen, set the log to Enable,
select the Log Level, Display Level and Mode. If the
selected mode is "Remote" or "Both", events will be sent
to a specified IP address and UDP port of a remote
system log server. If the selected mode is "Local" or
"Both", events will be recorded and viewed locally. Select
the desired values and click Apply to save the system
log options.
D-Link DSL-640B ADSL+ 4-Port Router User Manual 68