Summary

This chapter started with an explanation of the various methods of remote access. We described why remote access is useful to providers offering L3VPN service. Different types of remote access address different needs of providers. Dial access can be used as a simple backup solution when the primary connected link fails. The dial-in access is useful for both business and individual users.

Dial-out is also a useful technique for triggered events such as stats gathering or inventory management for banks and retail chains and their ATMs.

DSL cable access can easily be substituted for a dedicated connection between PE-CE because it is really a semipermanent connection. This is the most common mode of access for broadband users and small businesses. Flexible mapping of such users on a broadband network can provide users multiple solutions for their VPN access.