Teracom T2-B-Gawv1.4U10Y-BI, Руководство пользователя

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User Manual for T2-B-Gawv1.4U10Y.BI
Teracom Limited 120 An ISO Certificed Company
4 Network Topology
Before configuring the modem, you must determine if the modem is used in the
Bridging mode or Routing mode. This chapter describes some applications. For
detailed configuration, refer to Chapter 3 Web Configuration Management.
4.1 PPP over ATM (PPPoA) Mode
Ethernet
RADIUS
Server
PPP over ATM
PPPoA + NAT
PC(s)
BRAS
STM-1
DSLAM
Gawv1.4U10Y-B1
IS P
192.168.1.1
AAA
192. 168.1.2
192.168.1. 3
Hu b
Dynamic Public IP
assigned by BRAS
136.1.1. 1
Pool
：
136.1.1.0
Description
In this example, the modem is connected with the DSLAM through PVC 8/81 and
the access mode is the built-in PPPoA + NAT. The encapsulation of the BRAS
downlink port is PPP over ATM. The authentication is CHAP PAP. The IP address is
136.1.1.1. The IP pool is 136.1.1.* and the IP address of uplink port is 10.61.92.157.
The IP address of the WAN port on the modem is assigned by BRAS through the
built-in PPPoA dial-up dynamically. The PC that the modem is connected with is
assigned with a private IP address (in the same segment as the management IP
address of the modem). The NAT function of the modem is enabled and the private
PC address is translated to the public address 136.1.1.* (2 ~ 254) assigned by
BRAS dynamically 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 function of
the modem must be enabled. The IP address of the DHCP address pool is