1 top 25 most accessed web sites
2 top 25 users of bandwidth by ip address
3 top 25 services that consume the most bandwidth
click log and then select the reports tab. a window similar to that in figure 35 is displayed.
figure 35 reports window
1 start data collection
by default, the log analysis function is disabled. click start data collection to begin log analysis. when log analysis is enabled, the button label changes to stop data collection.
2 reset
click reset to clear the report statistics and begin a new sample period. the sample period is also reset when data collection is stopped or started, and when the internet firewall is restarted.
3 current sample period
displays the current sample period shown in the reports.
4 display report
select the desired report from the display report popup menu. the options are web site hits, bandwidth usage by ip address, and bandwidth usage by service. these reports are explained as follows.
web site hits
selecting web site hits from the report to view drop-down list displays a table showing the url for the 25 most accessed web sites and the number of hits to that site during the current sample period.
use the web site hits report to ensure that the majority of web access is to sites considered applicable to the primary business function. if leisure, sports, or other similar sites are on this list, it may signal the need to change or more strictly enforce the organization’s acceptable use policy.
bandwidth usage by ip address
selecting bandwidth usage by ip address from the report to view drop-down list displays a table showing the ip address of the 25 top users of internet bandwidth and the number of megabytes transmitted during the current sample period.
if using dhcp, remember that the ip address assigned to a computer can change. you may have to check the dhcp server logs to correctly identify which computer is listed in the report.
bandwidth usage by service
selecting bandwidth usage by service from the report to view drop-down list displays a table showing the name of the 25 top internet services, such as http, ftp, realaudio and so forth, and the number of megabytes received from the service during the current sample period.
use the bandwidth usage by service report to make sure the internet services being used are appropriate for the organization. if services such as video or push broadcasts are consuming a large portion of the available bandwidth, it may signal the need to change or more strictly enforce the organization’s acceptable use policy.