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BCM 4.0 Networking Configuration Guide
Chapter 62
Configuring the Dial-up resources
BCM allows the creation and use of dial-up connections for the following functionalities:
Dial-in
Dial-in functionality allows the administrator to access the BCM remotely by making an IP
connection using an ISDN PRI/BRI line, or a modem, and also can be used for various networking
applications.
When the System Administrator connects to the BCM they can access all IP-based system
management operations.
In addition to dial-in and -to improve security, BCM supports callback functionality for ISDN and
modem interfaces. When incoming calls are received on the interface, BCM terminates the call
and makes an outgoing call to the remote end based on the callback number specified and creates a
reverse connection.
Dial-out
Dial-out for Primary WAN Connection
Dial-up links can be used as primary connections to external networks. The modem provides the
functionality of dialing out to the ISP over a normal telephone line and establishing an IP link.
This can serve as the primary connection through which private networks behind BCM can access
the Internet.
PPPoE also provides this functionality but is used when connecting to broadband modems. PPP
connection is established over Ethernet medium. When BCM uses a PPPoE connection, the ISP
can control access billing and other types of service on a per-user basis rather than on a per-site
basis.
ISDN PRI/BRI lines can be configured for primary connections when ISP supports ISDN
connectivity. The BCM dials out over the ISDN channels configured on the device and establishes
the PPP connection.
Note: Modem interfaces are not listed as default interfaces, the administrator
must add them.
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