Dell SonicWALL GX250 Manual page 53

5. Syslog Server - In addition to the standard event log, the SonicWALL can send a
detailed log to an external Syslog server. Syslog is an industry-standard protocol
used to capture information about network activity. The SonicWALL Syslog cap-
tures all log activity and includes every connection's source and destination IP ad-
dress, IP service, and number of bytes transferred. The SonicWALL Syslog
support requires an external server running a Syslog daemon on UDP Port 514.
Syslog Analyzers such as WebTrends Firewall Suite may be used to sort, analyze,
and graph the Syslog data. To use ViewPoint for reporting log events, see Chapter
14 for configuration of the SonicWALL.
Enter the Syslog server name or IP address in the Syslog Server field. This field
requires restarting the SonicWALL for the change to take effect.
6. E-mail Log Now - Clicking Email Log Now immediately sends the log to the ad-
dress in the Send Log To field and then clears the log.
7. Clear Log Now - Clicking Clear Log Now deletes the contents of the log.
8. Send Log / Every / At - The Send Log menu determines the frequency of log E-
mail messages: Daily, Weekly, or When Full. If the Weekly option is selected,
then enter the day of the week the E-mail is sent in the Every menu. If the Week-
ly or the Daily option is selected, enter the time of day when the E-mail is sent in
the At field. If the Weekly or Daily option is selected and the log fills up, it is E-
mailed automatically.
9. When log overflows - The log buffer fills up if the SonicWALL cannot E-mail the
log file. The default behavior is to overwrite the log and discard its contents. How-
ever, you can configure the SonicWALL to shut down and prevent traffic from
traveling through the SonicWALL without being logged.
10. Syslog Individual Event Rate (seconds/event) -The Syslog Individual
Event Rate setting filters repetitive messages from being written to Syslog. If du-
plicate events occur during the period specified in the Syslog Individual Event
Rate field, they are not written to Syslog as unique events. Instead, the additional
events are counted, and then at the end of the period, a message is written to the
Syslog that includes the number of times the event occurred.
The Syslog Individual Event Rate default value is 60 seconds and the
maximum value is 86,400 seconds (24 hours). Setting this value to 0 seconds
sends all Syslog messages without filtering.
11. Syslog Format - You can choose the format of the Syslog to be Default or
WebTrends. If you select WebTrends, however, you must have WebTrends
software installed on your system.
SonicWALL Internet Security Appliance Guide Page 53