34 July 2004 6212-A2-GB20-20
4.4.1 RFC 1483 Bridged
When using RFC 1483-style bridging, Ethernet frames are bridged over ATM Virtual Circuits.
The Ethernet frames are encapsulated using either LLC Encapsulation or VC Multiplexing. With
LLC encapsulation, a link control header is added to the Ethernet packet that identifies the
protocol type (Ethernet). This allows multiple protocols to be transmitted over the ATM Virtual
Circuit. With VC Multiplexing, no link control header is needed as the ATM Virtual Circuit is
assumed to be carrying a single protocol. Since the Ethernet packets are bridged, the router’s
only responsibility is to pass the Ethernet packets to and from the Internet Service Provider
and the local network. The IP addresses of the local network are assigned by the ISP either
statically or dynamically.
To set up RFC 1483 Bridged mode, configure the common fields on the top of the page and click
on the Add button to add the entry.
4.4.2 RFC 1483 Routed
To set up RFC 1483 Routed mode, configure the common settings on the top of the page, then
click on RFC 1483 Routed and configure the specific settings (WAN IP address and WAN subnet
mask). Click on the Add button to add the entry.
Содержание Hotwire 6212
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