2 log description example – ZyXEL Communications Internet Security Appliance ZyWALL5UTM 4.0 User Manual
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ZyWALL 5/35/70 Series User’s Guide
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Chapter 30 Logs Screens
The following table describes the labels in this screen.
Table 164 View Log
LABEL
DESCRIPTION
Display
The categories that you select in the Log Settings page (see
) display in the drop-down list box.
Select a category of logs to view; select All Logs to view logs from all of the log
categories that you selected in the Log Settings page.
#
This field displays the log number.
Time
This field displays the time the log was recorded. See
configure the ZyWALL’s time and date.
Message
This field states the reason for the log.
Source
This field lists the source IP address and the port number of the incoming packet.
Destination
This field lists the destination IP address and the port number of the incoming packet.
Note
This field displays additional information about the log entry.
Email Log Now Click Email Log Now to send the log screen to the e-mail address specified in the
Log Settings page (make sure that you have first filled in the E-mail Log Settings
fields in Log Settings, see
).
Refresh
Click Refresh to renew the log screen.
Clear Log
Click Clear Log to delete all the logs.
30.2 Log Description Example
The following is an example of how a log displays in the command line interpreter and a
description of the sample log. Refer to the appendices for more log message descriptions and
details on using the command line interpreter to display logs.
# .time source destination
notes
message
5|06/08/2004 05:58:20 |172.21.4.187:137 |172.21.255.255:137
|ACCESS BLOCK
Firewall default policy: UDP (W to W/ZW)
Table 165 Example Log Description
LABEL
DESCRIPTION
#
This is log number five.
time
The log was generated on June 8, 2004 at 5:58 and 20 seconds AM.
source
The log was generated due to a NetBIOS packet sent from IP address 172.21.4.187 port
137.
destination The NetBIOS packet was sent to the 172.21.255.255 subnet port 137. This was a
NetBIOS UDP broadcast packet meant to discover devices on the network.