Reference Manual for the Model DG632 ADSL Modem Router

Using Router Mode

6-9

Click the Connection Status button to display router connection status, as shown in

Figure 6-5

and

Figure 6-6

.

Figure 6-5:

Connection Status screen for Dynamic IP

Clicking the Renew button updates the status information.

This screen shows the following statistics:

Table 6-1.

Connection Status Fields for Dynamic IP

Field

Description

IP Address

The IP Address assigned to the WAN port by the ADSL Internet Service Provider.

Subnet Mask

Then Network Mask assigned to the WAN port by the ADSL Internet Service Provider.

Default Gateway

Then default gateway modem assigned to the WAN port by the ADSL Internet Service

Provider.

DHCP Server

The DHCP server’s IP address.

DNS Server

The DNS server’s IP address.

Lease Obtained

Date and time the lease was obtained.

Lease Expires

Date and time the lease expires.

Reference Manual for the Model DG632 ADSL Modem Router

6-10

Using Router Mode

An alternate view of the Connection Status screen is shown in

Figure 6-6

below:

Figure 6-6:

Connection Status screen for PPPoA

Clicking the Renew button updates the status information.

This screen shows the following statistics:

Table 6-1.

Connection Status Fields for PPPoA

Field

Description

Connection Time

The time elapsed since the last connection to the Internet via the ADSL port.

Connection Method

The method the ADSL port acquired its TCP/IP configuration.

IP Address

The IP Address assigned to the WAN port by the ADSL Internet Service Provider.

Network Mask

Then Network Mask assigned to the WAN port by the ADSL Internet Service Provider.

Reference Manual for the Model DG632 ADSL Modem Router

Using Router Mode

6-11

Viewing, Selecting, and Saving Router Mode Logged Information

The modem will log security-related events such as denied incoming service requests, hacker

probes, and administrator logins.

Here is an example of the logs file.

Figure 6-7:

Security Logs menu

Reference Manual for the Model DG632 ADSL Modem Router

6-12

Using Router Mode

Log entries are described in

Table 6-1

below:

Log action buttons are described in

Table 6-2

Selecting What Information to Log

Besides the standard information listed above, you can choose to log additional information. Those

optional selections are as follows:

•

Attempted access to blocked site

•

Connections to the Web-based interface of the modem

•

Modem operation (start up, get time, etc.)

•

Known DoS attacks and Port Scans

Saving Log Files on a Server

You can choose to write the logs to a computer running a syslog program. To activate this feature,

enter the IP address of the server where the Syslog file will be written.

Table 6-1.

Security Log entry descriptions

Field

Description

Description or Action

The type of event and what action was taken if any.

Source IP

The IP address of the initiating device for this log entry.

Source port and interface

The service port number of the initiating device, and whether it

originated from the LAN or WAN

Destination

The name or IP address of the destination device or Web site.

Destination port and

interface

The service port number of the destination device, and whether it’s on

the LAN or WAN.

Table 6-2.

Security Log action buttons

Field

Description

Refresh

Refresh the log screen.

Clear Log

Clear the log entries.

Remove

(logging destination)

Remove a logging destination from the list.

Reference Manual for the Model DG632 ADSL Modem Router

Using Router Mode

6-13

Router Mode Diagnostic Utilities and Rebooting

The DG632 modem router has a diagnostics feature. You can use the diagnostics menu to perform

the following functions from the modem:

•

Ping an IP Address to test connectivity to see if you can reach a remote host.

•

Perform a DNS Lookup to test if an Internet name resolves to an IP address to verify that the

DNS server configuration is working.

•

Display the Routing Table to identify what other modems the modem is communicating with.

•

Reboot the modem to enable new network configurations to take effect or to clear problems

with the modem’s network connection.

From the Main Menu of the browser interface, under the Maintenance heading, select the Modem

Diagnostics heading to display the menu shown in

Figure 6-8

.

Figure 6-8:

Diagnostics menu