User Manual

5-1
5: Additional Remote Networking
This chapter discusses how to “fine-tune” remote networking and related features on your SCS.
Performance and cost issues are covered, as well as how to manage bandwidth on demand, use direct
connections and leased lines, and restrict access to the SCS.
Topics discussed in this chapter include:
◆ Basic Security, page 5-1, describes how to set up basic authentication and filter lists.
◆ Chat Scripts, page 5-3, details how to define chat scripts.
◆ Bandwidth On Demand, page 5-5, explains bandwidth management for LAN to LAN connections.
◆ Increasing Performance, page 5-9, and Reducing Cost, page 5-10, describe how to maximize your
SCS while minimizing your related costs.
◆ Using the SCS Without Dialup Modems, page 5-13, illustrates alternate configuration methods.
◆ Examples, page 5-15, show the features described in this chapter put to the test in real-life situations.
5.1 Basic Security
For a complete discussion of security issues, including instructions on restricting incoming and
authenticated logins, see Chapter 11, Security. PPP authentication is discussed in Chapter 7, PPP.
5.1.1 Port Authentication
Authentication may be used to restrict users to a particular configuration when they log into a port. When a
username is entered in the local authentication database, a series of commands may be associated with that
user. These commands (including starting a site) will be executed when the user is successfully
authenticated.
To execute commands when a user logs into the SCS, complete the following steps:
1 Ensure that the authentication databases have been configured using the Set/Define Authentication
commands.
2 Associate commands with a username by entering the Set/Define Authentication User command.
When the user is successfully authenticated, these associated commands will be executed.
Figure 5-1: Restricting a User to a Particular Site
In the example above, when user bob logs into the SCS, he will automatically run site dialin_users.
Local>> DEFINE AUTHENTICATION USER “bob” COMMAND “set ppp dialin_users”