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Page 31 / 78 Scroll up to view Page 26 - 30
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Status Pages • Status Diagnostics Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
23
570280-001-a
Status Diagnostics Page
This page provides the following diagnostic tools for troubleshooting IP connectivity
problems:
•
Ping (LAN)
•
Traceroute (WAN)
Ping Utility
Ping (Packet InterNet Groper) allows you to check connectivity between the SBG941 and
other devices on the SBG941 LAN. This utility sends a small packet of data and then
waits for a reply. When you Ping a computer IP address and receive a reply, it confirms
that the computer is connected to the SBG941.
Testing Network Connectivity with the SBG941
To check connectivity between the SBG941 and other devices on the SBG941 LAN,
perform the following test:
1.
Select
Ping
from the Select Utility drop-down list.
2.
Enter the IP address of the computer you want to Ping in the Target field.
3.
Enter the data packet size in bytes in the Ping Size field.
4.
Enter the number of ping attempts in the No. of Pings field.
5.
Enter the time (in milliseconds) between Ping send operations in the Ping Interval
field.
6.
Click
Start Test
to begin the Ping operation. Ping results display in the Results pane.
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Status Pages • Status Diagnostics Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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570280-001-a
7.
You can click
Abort Test
at any time during the test to stop the Ping operation.
8.
Repeat steps 2 through 6 for each device you want to ping.
When done, click
Clear Results
to delete the Ping results in the Results pane.
Traceroute Utility
Traceroute allows you to map the network path from the SBG941 Configuration Manager
to a public host. Selecting Traceroute from the Select Utility drop-down list presents
alternate controls for the Traceroute utility.
1.
Enter the IP address or Host Name of the computer you want to target for the
Traceroute operation in the Target field.
2.
Enter the maximum number of hops that the Traceroute operation performs before
stopping in the Max Hops field.
3.
Enter the data packet size in bytes in the Data Size field.
4.
Set the base UDP port number used by Traceroute in the Base Port field. The default
is
33434
. If a UDP port is not available, this field can be used to specify an unused
port range.
5.
In the Resolve Host field, select
On
to list the names of hosts found during the
Traceroute operation, or select
Off
to list only the hosts IP addresses.
6.
After entering the Traceroute parameters, click
Start Test
to begin the Traceroute
operation. The Traceroute results will display in the Results pane.
When done, click
Clear Results
to delete the Traceroute results in the Results pane.
Page 33 / 78
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Status Pages • Status Event Log Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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570280-001-a
Status Event Log Page
This page lists the critical system events in chronological order. A sample Event log is
shown below:
Status Configuration Page
Page 34 / 78
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Basic Pages • Basic Setup Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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570280-001-a
6
Basic Pages
The SBG941 Basic Pages allow you to view and configure SBG941 IP-related
configuration data, including Network Configuration, WAN Connection Type, DHCP, and
DDNS. The Backup option allows you to save a copy of your SBG941 configuration on
your computer. You can click any Basic submenu option to view or change the
configuration information for that option.
Basic Setup Page
This page allows you to configure the basic features of your SBG941 gateway related to
your ISP connection.
Field Descriptions for the Basic Setup Page
Field
Description
NAPT mode
NAPT is a special case of NAT, where many IP numbers are hidden
behind a number of addresses. In contrast to the original NAT,
however, this does not mean there can be only that number of
connections at a time.
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Basic Pages • Basic Setup Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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570280-001-a
NAPT mode (continued)
In NAPT mode, an almost arbitrary number of connections are
multiplexed using TCP port information. The number of simultaneous
connections is limited by the number of addresses multiplied by the
number of available TCP ports.
LAN
IP Address
MAC Address
Enter the IP address of the SBG941 on your private LAN.
Media Access Control address — a set of 12 hexadecimal digits
assigned during manufacturing that uniquely identifies the hardware
address of the SBG941 Access Point.
WAN
IP Address
MAC Address
Duration
Expires
The public WAN IP address of your SBG941 device, which is either
dynamically or statically assigned by your ISP.
Media Access Control address — a set of 12 hexadecimal digits
assigned during manufacturing that uniquely identifies the hardware
address of the SBG941 Access Point.
Describes how long before your Internet connection expires. The
WAN lease will automatically renew itself when it expires.
Displays the exact time and date the WAN lease expires.
Release WAN Lease
Click to release WAN lease.
Renew WAN Lease
Click to renew WAN lease.
WAN Connection Type
DHCP or Static IP. If your ISP uses DHCP, select
DHCP
and enter a
Host Name and Domain name, if required.
If your ISP uses static IP addressing, select
Static IP
and enter the
information provided by your ISP for Static IP Address, Static IP Mask,
Default Gateway, Primary DNS, and Secondary DNS.
Host Name
If WAN Connection Type is DHCP, enter a Host Name, if required.
Domain Name
If WAN Connection Type is DHCP, enter a Domain Name, if required.
MTU Size
Maximum Transmission Unit (MTU) is the largest size packet or frame
that can be sent. The default value is suitable for most users.
Spoofed MAC Address
If WAN Connection Type is Static IP, enter the information provided by
your ISP for Static IP Address, Static IP Mask, Default Gateway,
Primary DNS, and Secondary DNS.
When done, click
Apply
to save your changes.

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