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Page 126 / 131 Scroll up to view Page 121 - 125
User Manual for T2-B-Gawv1.4U10Y.BI
Teracom Limited
123
An ISO Certificed Company
4.3
RFC2684 (Bridged) + Fixedly-Assigned IP Address
Mode
PC (s)
BRAS
STM -1
DSLAM
Gawv1.4U10Y-B1
ISP
Hub
192.168.1.2
192.168.1.3
192.168.1.1
20.1.1.112
GW : 20.1.1.1
20.1.1.1
10.61.92.157
Description
In this example, the modem is connected to the DSLAM through PVC 8/81 and the
access mode is the RFC2684 (bridged) +NAT. The down link port of DSLAM is
encapsulated in 1483B. The IP address is 20.1.1.1. The IP address of the uplink
port is 10.61.92.157. The WAN IP address of the modem is assigned as 20.1.1.112
and the gateway is 20.1.1.1. The PC to the modem is assigned with a private IP
address (in the same segment as the management IP address 192.168.1.1). The
NAT function of the modem is enabled and the private address of the PC is
translated to the public address of 20.1.1.112 for accessing the ISP. The IP address
of the PC can be fixed (as in this example) or assigned through DHCP server of the
modem. If it is assigned by DHCP server, the DHCP function of the modem must
be enabled. The IP address of the DHCP address pool is 192.168.1.* (2~254). The
functions are enabled by default and the PC is configured to obtain IP and DNS
addresses dynamically.
Setting
(1)
Open the network browser and enter
192.168.1.1
in the address bar to log in to
the modem.
(2)
Choose
Configuration
>
Internet Connection
>
Connections
. Set VPI/VCI to
8/81, and click
Next
.
(3)
In the
Configure Connection Type
page, select
RFC 1483
protocol. Set the
encapsulation type to
LLC/SNAP
and the encapsulation mode to
Bridged
.
Click
Next
.
(4)
In the
Configure WAN IP Settings
page, enter WAN IP Address, WAN Subnet
Mask, and Default Gateway provided by your ISP. Select
Enable NAT
and
Add
Default Route
, and click
Next
.
Page 127 / 131
User Manual for T2-B-Gawv1.4U10Y.BI
Teracom Limited
124
An ISO Certificed Company
°
WAN IP Address
: 20.1.1.112
°
WAN Subnet Mask
: 255.255.255.0
°
Default Gateway
: 20.1.1.1
(5)
Check the network configuration and ensure that all the settings are consistent
with the data provided by your ISP. Then click
Apply
.
You can also modify the PVC 8/81 in “Internet Connetion”. And the steps are the
same as in “Connections”.
After the configuration is done, the modem WAN-side interface is B_0_32.
If
Enable NAT
is disabled during the configuration, you must configure the modem
on the BRAS. Otherwise, you can not access your ISP. In actual applications,
Enable NAT
must be selected.
4.4
RFC2684 (Bridged) + DHCP Mode
PC (s)
BRAS
STM -1
DSLAM
G awv1.4U10Y-B1
ISP
Hub
192.168.1.2
192.168.1.3
192.168.1.1
Dynam ic Public IP
Assigned by B RAS
D H C P Server
139.1.1.1
DHCP:139.1.1.0
10.61.92.157
Description
In this example, the modem is connected to the DSLAM through PVC 8/81 and the
access mode is the MER+NAT. The downlink port of DSLAM is encapsulated in
1483B. The IP address is 139.1.1.1 and the DHCP server is enabled. The address
pool is 139.1.1.* (2~254). The IP address of the uplink port is 10.61.92.157. The
WAN IP address of the modem is automatically obtained through DHCP. The PC
to the modem is assigned with a private IP address (in the same segment as the
management IP address 192.168.1.1). The NAT function of the modem are
enabled and the private address of the PC is translated to the public address
139.1.1.* (2~254) dynamically assigned by BRAS for accessing the ISP.
The IP address of the PC can be fixed (as in this example) or assigned through
DHCP server of the modem. If it is assigned by the DHCP server, the DHCP
function of the modem must be enabled. The IP address of the DHCP address pool
Page 128 / 131
User Manual for T2-B-Gawv1.4U10Y.BI
Teracom Limited
125
An ISO Certificed Company
is 192.168.1.* (2~254). The functions are enabled by default and the PC is
configured to obtain IP and DNS addresses dynamically.
Setting
(1)
Open the network browser and enter
192.168.1.1
in the address bar to log in to
the modem.
(2)
Choose
Configuration
>
Internet Connection
>
Connections
. Set VPI/VCI to
8/81, and click
Next
.
(3)
In the
Configure Connection Type
page, select
RFC 1483
protocol. Set the
encapsulation type to
LLC/SNAP
and the encapsulation mode to
Bridged
.
Click
Next
.
(4)
In the
Configure WAN IP Settings
page, select
Obtain an IP address
automatically
and
Enable NAT
. Click
Next
.
(5)
Check the network configuration and ensure that all the settings are consistent
with the data provided by your ISP. Then click
Apply
.
After the configuration is successful, the IP address that the modem obtains at the
WAN-side port B_0_35 is “136.1.1.2.
If
Enable NAT
is disabled during the configuration, you must configure the modem
on the BRAS. Otherwise, you can not access your ISP. In actual applications,
Enable NAT
must be selected.
Note:
The DNS server address can be configured manually.
4.5
RFC2684 (Routed) + NAT Mode
PC (s)
BRAS
STM -1
DSLAM
Gawv1.4U10Y-B1
ISP
Hub
192.168.1.2
192.168.1.3
192.168.1.1
20.1.1.2
20.1.1.1
10.61.92.157
Description
In this example, the modem is connected to the DSLAM through PVC 8/81 and the
access mode is the IPOA+NAT. The downlink port of DSLAM is encapsulated in
Page 129 / 131
User Manual for T2-B-Gawv1.4U10Y.BI
Teracom Limited
126
An ISO Certificed Company
1483R. The IP address is 20.1.1.1. The IP address of the uplink port is
10.61.92.157. The WAN IP address of the modem is assigned as 20.1.1.2. The PC
to the modem is assigned with a private IP address (in the same segment as the
management IP address 192.168.1.1). The NAT function of the modem is enabled
and the private address of the PC is translated to the public address 139.1.1.*
(2~254) dynamically assigned by BRAS for access to ISP.
The IP address of the PC can be fixed (as in this example) or assigned through
DHCP server of the modem. If it is assigned by DHCP server, the DHCP functions
of the modem must be enabled. The IP address of the DHCP address pool is
192.168.1.* (2~254). The functions are enabled by default and the PC is configured
to obtain IP and DNS addresses dynamically.
Setting
1)
Open the network browser and enter
192.168.1.1
in the address bar to log in to
the modem.
2)
Choose
Configuration
>
Internet Connection
>
Connections
. Set VPI/VCI to
8/81, and click
Next
.
3)
In the
Configure Connection Type
page, select
RFC 1483
protocol. Set the
encapsulation type to
LLC/SNAP
and the encapsulation mode to
Routed
. Click
Next
.
4)
In the
Configure WAN IP Settings
page, enter WAN IP Address, WAN Subnet
Mask, and Default Gateway provided by your ISP. Select
Enable NAT
and
Add
Default Route
, and click
Next
.
°
WAN IP Address
: 20.1.1.2
°
WAN Subnet Mask
: 255.255.255.0
°
Default Gateway
: 20.1.1.1
5)
Check the network configuration and ensure that all the settings are consistent
with the data provided by your ISP. Then click
Apply
.
In
Confiugre WAN IP Settings
page, besides entering WAN IP address, WAN
subnet mask, DNS server addresses, and selecting enable NAT, you must select
Add Default Route
. Otherwise, you have to add the static modem manually. If you
need to modify the LAN IP address and DHCP server information, you can operate
in the
Local Network (LAN)
page and
DHCP Server
page.
After the configuration is done, WAN-side interface of the the modem is R_0_32.
4.6
External PPPoE Dial-up Mode
Page 130 / 131
User Manual for T2-B-Gawv1.4U10Y.BI
Teracom Limited
127
An ISO Certificed Company
PPPoE
Client S/W
RADIUS
Server
PPP over Ethernet
Bridge
Mode
PC(s)
BRAS
STM-1
DSLAM
Gawv1.4U10Y-B1
ISP
AAA
Default Private IP
192.168.1.1
Public IP assigned
by BRAS
Hub
136.1.1.1
Pool:136.1.1.0
Description
In this example, the modem is connected to the DSLAM through PVC 8/81 and the
access mode is pure Bridging. The encapsulation of the downlink port of BRAS is
PPP over Ehernet. The authentication is CHAP PAP. The IP address is 136.1.1.1.
The IP pool is 136.1.1.*. The IP address of the uplink port is 10.61.62.157. The PC
to the modem obtains its public address dynamically assigned by BRAS through
PPPoE dial-up.
Setting
1)
Open the network browser and enter
192.168.1.1
in the address bar to log in to
the modem.
2)
Choose
Configuration
>
Internet Connection
>
Connections
. Set VPI/VCI to
8/81, and click
Next
.
3)
In the
Configure Connection Type
page, select
Bridging
protocol. Set the
encapsulation type to
LLC/SNAP
. Click
Next
.
4)
Check the network configuration and ensure that all the settings are consistent
with the data provided by your ISP. Then click
Apply
.
Note:
In the pure Bridging mode, there is no interface at the WAN side of the modem.

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