Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
Sample Network Deployments
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Table of Contents

Sample Network Deployments

Sample Network Deployments

This part of the software configuration guide presents a variety of possible Ethernet- and Digital Subscriber Line (DSL)-based network configurations using Cisco 1800 series routers. Each scenario is described with a network topology, a step-by-step procedure that is used to implement the network configuration, and a configuration example that shows the results of the configuration. The Cisco 1811 and Cisco 1812 router models can be used in the Ethernet-based scenarios and the Cisco 1801, Cisco 1802, and Cisco 1803 router models can be used in the DSL-based scenarios.

The first network scenario provides a simple network configuration: point-to-point protocol (PPP) over the WAN interface with Network Address Translation (NAT). Each successive scenario builds on the previous scenario by configuring another key feature.

The scenarios do not address all of the possible network needs; instead, they provide models on which you can pattern your network. You can choose not to use features presented in the examples, or you can add or substitute features that better suit your needs.

To verify that a specific feature is compatible with your router, you can use the Software Advisor tool. You can access this tool at www.cisco.com > Technical Support & Documentation > Tools & Resources with your Cisco username and password.

For Ethernet-Based Network Deployments

Use the following configuration examples to assist you in configuring your router for Ethernet-based networks.

For DSL-Based Network Deployments

Use the following configuration examples to assist you in configuring your router for DSL-based networks.