Cisco 827 - 827 Router - EN Manuel d'utilisateur télécharger pdf (Page 3)

Network Scenarios Pagina 3 di 35

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/827/827swcfg/ntwkscen.htm 14/02/2001

The Cisco 827 routers send data or voice packets from the remote user to the service provider or

corporate network through a high-speed, point-to-multi-point asymmetric digital subscriber line (ADSL)

technology.

Internet Access Scenarios

The following scenarios are described for Internet access:

l Replacing a Bridge or Modem with the Cisco 827 Router

l PPP over ATM with NAT

l RFC 1483 Encapsulation with NAT

l Integrated Routing and Bridging

l Concurrent Routing and Bridging

l Data Network

l Voice Network

Each scenario is described with a network diagram, configuration steps to set up the network, and an

example configuration.

Before You Configure Your Internet Access Network

You need to gather the following information before configuring networks based on the Internet access

scenarios:

l Order an ADSL line from your public telephone service provider, and determine that the ADSL

signaling type is DMT, also called ANCII T1.413, or just DMT Issue 2.

l Gather information to set up a PPP Internet connection, including the PPP client name

authentication type, and PPP password.

l Determine the IP routing information, including IP address, and ATM permanent virtual circuits

(PVCs). These PVC parameters are typically virtual path identifier (vpi), virtual circuit identifier

(vci), and traffic shaping parameters if applicable.

l Gather DNS server IP address and default gateways.

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Cisco 827 - 827 Router - EN Manuel d'utilisateur Page 3