Alcatel AST570, User Manual

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IP vs. Bridging
Typical Bridging Setup
Using TCP/IP and
Bridging
Local IP
communication
14 Networking Services - IP
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14.2.1 Transparent Bridging
Basically, Bridging does not require any IP address at all: neither
in your PC(s), nor in your AST570 .
However, in case of Internet access, private IP networking or in
case the Bridging packet service is used for Bridged PPPoE, your
PC(s) must be configured for TCP/IP.
In most cases, your SP will require you to use DHCP for your PC.
In this case the DHCP server is at the remote side of the DSL
connection. Therefore, your AST570 ' DHCP server must be
disabled.
Your SP may:
Provide you with an IP address
Require you to use DHCP.
Alternatively, a second but Private IP address can be manually
configured for local IP communication. It depends on your OS
whether it supports this combination.
e.g. Microsoft supports Logical Multihoming via Registry keys.
Bridging & DHCP Service
The AST570 DHCP server is by default enabled (via Auto DHCP).
In case you use your AST570 in Bridging mode and your ISP
requires you to enable DHCP in your PC(s), you must disable the
DHCP server inside the AST570 to avoid conflicts between two
DHCP servers being active at the same time.
See section 14.4 for more information on the
AST570 DHCP
server.
CAUTION