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VMG3926-B10A User’s Guide
181
C
HAPTER
14
Interface Group
14.1
Overview
By default, all LAN and WAN interfaces on the VMG are in the same group and can communicate
with each other. Create interface groups to have the VMG assign the IP addresses in different
domains to different groups. Each group acts as an independent network on the VMG. This lets
devices connected to an interface group’s LAN interfaces communicate through the interface
group’s WAN or LAN interfaces but not other WAN or LAN interfaces.
14.1.1
What You Can Do in this Chapter
The
Interface Group
screens let you create multiple networks on the VMG (
Section 14.2 on page
181
).
14.2
The Interface Group Screen
You can manually add a LAN interface to a new group. Alternatively, you can have the VMG
automatically add the incoming traffic and the LAN interface on which traffic is received to an
interface group when its DHCP Vendor ID option information matches one listed for the interface
group.
Use the
LAN
screen to configure the private IP addresses the DHCP server on the VMG assigns to
the clients in the default and/or user-defined groups. If you set the VMG to assign IP addresses
based on the client’s DHCP Vendor ID option information, you must enable DHCP server and
configure LAN TCP/IP settings for both the default and user-defined groups. See
Chapter 8 on page
119
for more information.
In the following example, the client that sends packets with the DHCP Vendor ID option set to MSFT
5.0 (meaning it is a Windows 2000 DHCP client) is assigned the IP address 192.168.2.2 and uses
the WAN VDSL_PoE/ppp0.1 interface.
Page 182 / 327
Chapter 14 Interface Group
VMG3926-B10A User’s Guide
182
Figure 98
Interface Grouping Application
Click
Network Setting > Interface Group
to open the following screen.
Figure 99
Network Setting > Interface Group
The following table describes the fields in this screen.
14.2.1
Interface Group Configuration
Click the
Add New Interface Group
button in the
Interface Group
screen to open the following
screen. Use this screen to create a new interface group.
Note: An interface can belong to only one group at a time.
Table 73
Network Setting > Interface Group
LABEL
DESCRIPTION
Add New
Interface Group
Click this button to create a new interface group.
Group Name
This shows the descriptive name of the group.
WAN Interface
This shows the WAN interfaces in the group.
LAN Interfaces
This shows the LAN interfaces in the group.
Criteria
This shows the filtering criteria for the group.
Modify
Click the
Delete
icon to remove the group.
Add
Click this button to create a new group.
Default: ETH 2~4
Internet
192.168.1.x/24
192.168.2.x/24
VDSL_PoE/ppp0.1
eth10.0
DHCP Vendor ID option: MSFT 5.0
Page 183 / 327
Chapter 14 Interface Group
VMG3926-B10A User’s Guide
183
Figure 100
Interface Group Configuration
The following table describes the fields in this screen.
Table 74
Interface Group Configuration
LABEL
DESCRIPTION
Group Name
Enter a name to identify this group. You can enter up to 30 characters. You can use letters,
numbers, hyphens (-) and underscores (_). Spaces are not allowed.
WAN Interface
used in the
grouping
Select the WAN interface this group uses. The group can have up to one PTM interface, up to
one ATM interface and up to one ETH interface.
Select
None
to not add a WAN interface to this group.
Grouped LAN
Interfaces
Available LAN
Interfaces
Select one or more LAN interfaces (Ethernet LAN, HPNA or wireless LAN) in the
Available
LAN Interfaces
list and use the left arrow to move them to the
Grouped LAN Interfaces
list to add the interfaces to this group.
To remove a LAN or wireless LAN interface from the
Grouped LAN Interfaces
, use the
right-facing arrow.
Automatically
Add Clients
With the
following DHCP
Vendor IDs
Click
Add
to identify LAN hosts to add to the interface group by criteria such as the type of
the hardware or firmware. See
Section 14.2.2 on page 184
for more information.
#
This shows the index number of the rule.
Filter Criteria
This shows the filtering criteria. The LAN interface on which the matched traffic is received
will belong to this group automatically.
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Chapter 14 Interface Group
VMG3926-B10A User’s Guide
184
14.2.2
Interface Grouping Criteria
Click the
Add
button in the
Interface Grouping Configuration
screen to open the following
screen.
Figure 101
Interface Grouping Criteria
The following table describes the fields in this screen.
WildCard
Support
This shows if wildcard on DHCP option 60 is enabled.
Remove
Click the
Remove
icon to delete this rule from the VMG.
Apply
Click
Apply
to save your changes back to the VMG.
Cancel
Click
Cancel
to exit this screen without saving.
Table 74
Interface Group Configuration (continued)
LABEL
DESCRIPTION
Table 75
Interface Grouping Criteria
LABEL
DESCRIPTION
Source MAC
Address
Enter the source MAC address of the packet.
DHCP Option
60
Select this option and enter the Vendor Class Identifier (Option 60) of the matched traffic,
such as the type of the hardware or firmware.
Enable
wildcard on
DHCP
option 60
option
Select this option to be able to use wildcards in the Vendor Class Identifier configured for
DHCP option 60.
DHCP Option
61
Select this and enter the device identity of the matched traffic.
IAID
Enter the Identity Association Identifier (IAID) of the device, for example, the WAN
connection index number.
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Chapter 14 Interface Group
VMG3926-B10A User’s Guide
185
DUID type
Select
DUID-LLT
(DUID Based on Link-layer Address Plus Time) to enter the hardware
type, a time value and the MAC address of the device.
Select
DUID-EN
(DUID Assigned by Vendor Based upon Enterprise Number) to enter the
vendor’s registered enterprise number.
Select
DUID-LL
(DUID Based on Link-layer Address) to enter the device’s hardware type
and hardware address (MAC address) in the following fields.
Select
Other
to enter any string that identifies the device in the DUID field.
DHCP Option
125
Select this and enter vendor specific information of the matched traffic.
Enterprise
Number
Enter the vendor’s 32-bit enterprise number registered with the IANA (Internet Assigned
Numbers Authority).
Manufactur
er OUI
Specify the vendor’s OUI (Organization Unique Identifier). It is usually the first three bytes
of the MAC address.
Product
Class
Enter the product class of the device.
Model
Name
Enter the model name of the device.
Serial
Number
Enter the serial number of the device.
Apply
Click
Apply
to save your changes back to the VMG.
Cancel
Click
Cancel
to exit this screen without saving.
Table 75
Interface Grouping Criteria (continued)
LABEL
DESCRIPTION

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