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Page 166 / 212 Scroll up to view Page 161 - 165
DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual
6-18
Router and Network Management
v1.0, April 2007
The Known PCs and Devices table lists all current entries in the Network Database. For each PC
or device, the following data is displayed.
DHCP Log
The
DHCP Log
is accessible from the
DHCP Log
link on the
LAN Setup
screen, located under
Network Configuration
on the main menu.
Table 6-2.
Known PCs and Devices table
Item
Description
Name
The name of the PC or device. Sometimes, this can not be determined, and will be
listed as Unknown. In this case, you can edit the entry to add a meaningful name.
IP Address
The current IP address. For DHCP clients, where the IP address is allocated by the
DHCP Server in this device, this IP address will not change. Where the IP address is
set on the PC (as a fixed IP address), you may need to update this entry manually if
the IP address on the PC is changed.
MAC Address
The MAC address of the PC. The MAC address is a low-level network identifier
which is fixed at manufacture.
Group
Each PC or device must be in a single group. The Group column indicates which
group each entry is in. By default, all entries are in the Default group.
Note:
If the firewall is rebooted, the table data is lost until the firewall rediscovers the
devices. To force the firewall to look for attached devices, click the Refresh button.
Figure 6-8
Page 167 / 212
DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual
Router and Network Management
6-19
v1.0, April 2007
Port Triggering Status
The
Port Triggering Status
screen is available from the
Port Triggering
screen accessible under
Security
on the main menu. Only one PC can use a Port Triggering application at any time. When
the PC has finished using the application, a time-out period occurs before another PC can use the
Port triggering. You can check status using the Port Triggering Status screen. For a description of
the fields, see the following field descriptions in
Table 6-3
.
Firewall Security
A log of the firewall activities can be viewed, saved to a syslog server, and sent to an email
address.
Figure 6-10
shows the
Log
screen that is invoked by clicking
Logs and Email
under
Security
on
the Main Menu bar.
Figure 6-9
Table 6-3.
Port Triggering Status data
Item
Description
Rule
The name of the Rule.
LAN IP Address
The IP address of the PC currently using this rule.
Open Ports
The Incoming ports which are associated the this rule. Incoming traffic using one of
these ports will be sent to the IP address above.
Time Remaining
The time remaining before this rule is released, and thus available for other PCs.
This timer is restarted whenever incoming or outgoing traffic is received.
Page 168 / 212
DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual
6-20
Router and Network Management
v1.0, April 2007
Figure 6-10
Select the types
Enable emailing
Enable Syslogs server.
Set a schedule to send
email. logs.
of logs to email.
of logs.
Click to view logs
Page 169 / 212
DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual
Router and Network Management
6-21
v1.0, April 2007
To invoke the Log screen, click the
View Log
link on the Logs and E-mail screen.
VPN Tunnels
You can view the VPN Logs by selecting
Monitoring
on the main menu and
VPN Logs
on the
submenu. The VPN Logs screen displays the log contents generated by all VPN policies.
•
Click
Refresh
to view entries made after this screen was invoked.
•
Click
Clear Log
to delete all entries.
Figure 6-11
Figure 6-12
Page 170 / 212
DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual
6-22
Router and Network Management
v1.0, April 2007
Select
VPN
from the main menu and
Connection Status
from the submenu to display the status of
IPSec connections. You can change the status of a connection; to either establish or drop the
Security Association (SA). Clicking on the VPN Status will show the IPSec Connection status of
each VPN tunnel. The field descriptions for the data in the IPSec Connection Status table are in the
following
Table 6-4
.
Using a SNMP Manager
Simple Network Management Protocol (SNMP) lets you monitor and manage your router from an
SNMP Manager. It provides a remote means to monitor and control network devices, and to
manage configurations, statistics collection, performance, and security.
The SNMP Configuration table lists the SNMP configurations by:
Figure 6-13
Table 6-4.
VPN Status Data
Item
Description
Policy Name
The name of the VPN policy associated with this SA.
Endpoint
The IP address on the remote VPN Endpoint.
Tx (KBytes)
The amount of data transmitted over this SA.
Tx (Packets)
The number of packets transmitted over the SA.
State
The current status of the SA for IKE Policies. The status can be either Not Connected
or IPSec SA Established.
Action
Click
Connect
to build the SA (connection) or
Drop
to terminate the SA (connection).
Poll Interval
Time, in seconds, after which this screen will automatically reload.
Set Interval
Enter a new value in the Poll Interval field and click Set Interval to set a new interval
value.
Stop
Disables the automatic page refresh feature.

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