Designing Your Network for Internet Access by Dave Molta Table of Contents Introduction Defining Business Objectives Consumer or Provider? Technology Overview History TCP/IP Other Protocols The Corporate Internet Addressing Getting an Address Internetwork Design and Address Assignment Selecting a Router Designing the Corporate Backbone Flat Addressing vs. Subnetting Manual vs. Dynamic Addressing BOOTP vs. DHCP Implementing a Domain Name Server Connection Alternatives: ISP's and On-Line Services Dedicated Link or Dial-up Account? Dial-up Accounts ISPs Online Services Dedicated Links The Range of Alternatives Dial-On-Demand Links Dial-On-Demand ISDN Dedicated Service Options Traditional Leased Lines Frame Relay Maintenance and Service Issues Choosing an Internet Service Provider The Big Picture Selection Criteria The ISP's Backbone Dial-Up Services Training, Counsulting and Support Providing Internet Services to LAN Users CONNECTIVITY Host-oriented Approaches Client-Oriented Approaches Client Software: Selection Client Software: Deployment TCP/IP Gateways APPLICATIONS Electronic Mail LAN-based E-mail Systems SMTP and POP FTP Servers World Wide Web Servers Using the Internet as a Corporate Backbone Migrating to TCP/IP Security Concerns How Much Security Do You Need? Points of Exposure Managing the Security Risks November 15, 1996 Print This Page E-mail this URL