Select A Connection Mode; Bridging Mode Procedures - Cisco 678 Installation And Operation Manual

Chapter 5 Configuration Procedures for the Cisco 67x CPE Devices
Note

Select a Connection Mode

Note

Bridging Mode Procedures

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If you have not set any passwords for the Cisco 67x, press the Enter
key when the system prompts you for a password to enter CBOS. If
you have not preset a password, you can still log on to the CBOS.
You must have an exec password set in order to Telnet into the
Cisco 67x.
You are now in enable mode. The system prompt appears:
cbos#
The CBOS supports two kinds of connection modes: bridging and routing.
Routing mode has two options: PPP routing (default) and RFC 1483 routing.
Routing and bridging cannot be used simultaneously.
When the Cisco 67x operates in bridge mode, it behaves like a wire connecting a
local PC directly to a service provider's network. Bridge data is encapsulated
using the RFC 1483 or PPP (BCP) protocol to enable data transport. Because
bridges operate at the Media Access Control (MAC) layer only, applications
requiring IP communication, such as Telnet, TFTP, RADIUS, Syslog, Ping, and
the web interface, are not available unless a management VC is configured.
Cisco currently supports a learning bridge mode. The virtual path
identifier/virtual channel identifier (VPI/VCI) configuration of the Cisco 67x is
unaffected by the operational mode (bridging versus routing) of the device.
Cisco also provides two methods of configuring and managing the bridged
Cisco 67x, through in-band bridging management or through a separate
management VC. The two methods cannot be used simultaneously. If a separate
management VC is used, the Cisco 67x can only be managed remotely through
wan0-1 and not from the local network.
Cisco 600 Series Installation and Operation Guide
Select a Connection Mode
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