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Chapter 4 Broadband
ericom D1000 modem User’s Guide
36
4.3
The More Connections Screen
The Device allows you to configure more than one Internet access connection. To configure
additional Internet access connections click
Network Setting > Broadband > More
Connections
. The screen differs by the encapsulation you select. When you use the
Broadband >
Internet Connection
screen to set up Internet access, you are configuring the first WAN
connection.
MLD Proxy
Select the version of MLD proxy (
MLDv1
or
MLDv2
) to have the Device act as for this
connection. This allows the Device to get subscription information and maintain a
joined member list for each multicast group. It can reduce multicast traffic
significantly. Select
None
to turn off MLD proxy.
ATM QoS
ATM QoS Type
Select
CBR
(Continuous Bit Rate) to specify fixed (always-on) bandwidth for voice or
data traffic. Select
UBR With PCR
(Unspecified Bit Rate) for applications that are
non-time sensitive, such as e-mail. Select
Realtime VBR
(real-time Variable Bit
Rate) type for applications with bursty connections that require closely controlled
delay and delay variation. Select
Non Realtime VBR
(non real-time Variable Bit
Rate) type for connections that do not require closely controlled delay and delay
variation.
Peak Cell Rate
Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to find the Peak Cell
Rate (PCR). This is the maximum rate at which the sender can send cells. Type the
PCR here.
Sustain Cell Rate
The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that can be
transmitted. Type the SCR, which must be less than the PCR. Note that system
default is 0 cells/sec.
Maximum Burst
Size
Maximum Burst Size (MBS) refers to the maximum number of cells that can be sent
at the peak rate. Type the MBS, which is less than 65535.
PPPoE Passthrough
If encapsulation type is PPPoE, select
Yes
to enable PPPoE Passthrough. In addition to
the Device’s built-in PPPoE client, you can select this to allow hosts on the LAN to use
PPPoE client software on their computers to connect to the ISP via the device. Each
host can have a separate account and a public WAN IP address.
MTU
MTU
The Maximum Transmission Unit (MTU) defines the size of the largest packet allowed
on an interface or connection. Enter the MTU in this field.
For ENET ENCAP, the MTU value is 1500.
For PPPoE, the MTU value is 1492.
For PPPoA and RFC 1483, the MTU is 65535.
Apply
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
Table 3
Network Setting > Broadband > Internet Connection (continued)
LABEL
DESCRIPTION
Page 37 / 228
Chapter 4 Broadband
ericom D1000 modem User’s Guide
37
Figure 15
Network Setting > Broadband > More Connections
The following table describes the labels in this screen.
4.3.1
More Connections Edit
Use this screen to configure a connection. Click the edit icon in the
More Connections
screen to
display the following screen.
Table 4
Network Setting > Broadband > More Connections
LABEL
DESCRIPTION
#
This is an index number indicating the number of the corresponding connection.
Active
This field indicates whether the connection is active or not.
Clear the check box to disable the connection. Select the check box to enable it.
Node Name
This is the name you gave to the Internet connection.
VPI/VCI
This field displays the Virtual Path Identifier (VPI) and Virtual Channel Identifier (VCI)
numbers configured for this WAN connection.
Encapsulation
This field indicates the encapsulation method of the Internet connection.
Modify
The first (ISP) connection is read-only in this screen. Use the
Broadband > Internet
Connection
screen to edit it.
Click the
Edit
icon to edit the Internet connection settings. Click this icon on an empty
configuration to add a new Internet access setup.
Click the
Remove
icon to delete the Internet access setup from your connection list.
Page 38 / 228
Chapter 4 Broadband
ericom D1000 modem User’s Guide
38
Figure 16
Network Setting > Broadband > More Connections: Edit
The following table describes the labels in this screen.
Table 5
Network Setting > Broadband > More Connections: Edit
LABEL
DESCRIPTION
General
Active
Select the check box to activate or clear the check box to deactivate this connection.
Node Name
Enter a unique, descriptive name of up to 13 ASCII characters for this connection.
Page 39 / 228
Chapter 4 Broadband
ericom D1000 modem User’s Guide
39
Mode
Select
Router
from the drop-down list box if your ISP allows multiple computers to share
an Internet account.
If you select
Bridge
, the Device will forward any packet that it does not route to this
remote node; otherwise, the packets are discarded.
Encapsulation
Select the method of encapsulation used by your ISP from the drop-down list box.
Choices vary depending on the mode you select in the
Mode
field.
If you select
Router
in the
Mode
field, select
PPPoA
,
RFC 1483
,
ENET ENCAP
or
PPPoE
.
If you select
Bridge
in the
Mode
field, method of encapsulation is not available.
Multiplex
Select the method of multiplexing used by your ISP from the drop-down list. Choices are
VC
or
LLC
.
By prior agreement, a protocol is assigned a specific virtual circuit, for example, VC1 will
carry IP. If you select VC, specify separate VPI and VCI numbers for each protocol.
For LLC-based multiplexing or PPP encapsulation, one VC carries multiple protocols with
protocol identifying information being contained in each packet header. In this case, only
one set of VPI and VCI numbers need be specified for all protocols.
IPv6/IPv4 Dual
Stack
If you select
Enable
, the Device can connect to IPv4 and IPv6 networks and choose the
protocol for applications according to the address type. If you select
Disable,
the Device
will operate in IPv4 mode.
VPI
The valid range for the VPI is 0 to 255. Enter the VPI assigned to you.
VCI
The valid range for the VCI is 32 to 65535 (0 to 31 is reserved for local management of
ATM traffic). Enter the VCI assigned to you.
IP Address
This option is available if you select
Router
in the
Mode
field.
A static IP address is a fixed IP that your ISP gives you. A dynamic IP address is not fixed;
the ISP assigns you a different one each time you connect to the Internet.
If you use the encapsulation type except
RFC 1483
, select
Obtain an IP Address
Automatically
when you have a dynamic IP address; otherwise select
Static IP
Address
and type your ISP assigned IP address in the
IP Address
field below.
If you use
RFC 1483
, enter the IP address given by your ISP in the
IP Address
field.
Subnet Mask
Enter a subnet mask in dotted decimal notation.
Gateway IP
Address
Specify a gateway IP address (supplied by your ISP).
Primary DNS
Enter the primary DNS server’s address for the Device.
Secondary
DNS
Enter the secondary DNS server’s address for the Device.
NAT
SUA Only
is available only when you select
Router
in the
Mode
field.
Select
SUA Only
if you have one public IP address and want to use NAT. Otherwise, select
None
to disable NAT.
Apply
Click this to save your changes.
Cancel
Click this to return to the previous screen without saving.
Advanced Setup
Click this to display more fields in this screen to configure more details of your WAN
settings.
RIP & Multicast Setup
RIP Direction
Select the
RIP Direction
from
None
,
Both
,
In Only
and
Out Only
.
RIP Version
This field is not configurable if you select
None
in the
RIP Direction
field.
Select the
RIP Version
from
RIP-1
,
RIP2-B
and
RIP2-M
.
Table 5
Network Setting > Broadband > More Connections: Edit (continued)
LABEL
DESCRIPTION
Page 40 / 228
Chapter 4 Broadband
ericom D1000 modem User’s Guide
40
4.4
The 3G Backup Screen
Use this screen to configure your 3G settings. Click
Network Setting > Broadband > 3G
Backup
.
Note: The actual data rate you obtain varies depending the 3G card you use, the signal
strength to the service provider’s base station, and so on.
Multicast
Internet Group Multicast Protocol (IGMP) is a network-layer protocol used to establish
membership in a multicast group. The Device supports
IGMP-v1
,
IGMP-v2
and
IGMP-
v3
. Select
None
to disable it.
ATM QoS
ATM QoS Type
Select
CBR
(Continuous Bit Rate) to specify fixed (always-on) bandwidth for voice or data
traffic. Select
UBR
(Unspecified Bit Rate) for applications that are non-time sensitive,
such as e-mail. Select
nrtVBR
(Variable Bit Rate-non Real Time) or
rtVBR
(Variable Bit
Rate-Real Time) for bursty traffic and bandwidth sharing with other applications.
Peak Cell Rate
Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to find the Peak Cell Rate
(PCR). This is the maximum rate at which the sender can send cells. Type the PCR here.
Sustain Cell Rate
The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that can be
transmitted. Type the SCR, which must be less than the PCR. Note that system default is
0 cells/sec.
Maximum Burst
Size
Maximum Burst Size (MBS) refers to the maximum number of cells that can be sent at
the peak rate. Type the MBS, which is less than 65535.
MTU
MTU
The Maximum Transmission Unit (MTU) defines the size of the largest packet allowed on
an interface or connection. Enter the MTU in this field.
For ENET ENCAP, the MTU value is 1500.
For PPPoE, the MTU value is 1492.
For PPPoA and RFC, the MTU is 100-1500.
Apply
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
Table 5
Network Setting > Broadband > More Connections: Edit (continued)
LABEL
DESCRIPTION

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