Prestige 650 ADSL Router
viii Table of Contents
4.1.2 Encapsulation and Multiplexing Scenarios........................................................................4-2
4.1.3 Outgoing Authentication Protocol .....................................................................................4-6
4.2 Remote Node Setup ...................................................................................................................4-6
4.3 Remote Node Filter....................................................................................................................4-8
Chapter 5 Remote Node TCP/IP Configuration........................................................................................5-1
5.1 TCP/IP Configuration ................................................................................................................5-1
5.1.1 Editing TCP/IP Options.....................................................................................................5-1
5.1.2 IP Static Route Setup .........................................................................................................5-5
Chapter 6 Bridging Setup ...........................................................................................................................6-1
6.1 Bridging in General....................................................................................................................6-1
6.2 Bridge Ethernet Setup................................................................................................................6-1
6.2.1 Remote Node Bridging Setup ............................................................................................6-1
6.2.2 Bridge Static Route Setup..................................................................................................6-2
Chapter 7 Network Address Translation (NAT)........................................................................................7-1
7.1 Introduction................................................................................................................................7-1
7.1.1 NAT Definitions ................................................................................................................7-1
7.1.2 What NAT Does ................................................................................................................7-2
7.1.3 How NAT Works...............................................................................................................7-2
7.1.4 NAT Application ...............................................................................................................7-3
7.1.5 NAT Mapping Types.........................................................................................................7-4
7.2 Using NAT.................................................................................................................................7-6
7.2.1 SUA (Single User Account) Versus NAT .........................................................................7-6
7.2.2 Applying NAT...................................................................................................................7-6
7.3 NAT Setup.................................................................................................................................7-8
7.3.1 Address Mapping Sets .......................................................................................................7-9
7.4 NAT Server Sets — Port Forwarding......................................................................................7-14
7.4.1 Configuring a Server behind NAT...................................................................................7-15
7.5 General NAT Examples...........................................................................................................7-18
7.5.1 Example 1: Internet Access Only.....................................................................................7-18
7.5.2 Example 2: Internet Access with an Inside Server...........................................................7-19
7.5.3 Example 3: Multiple Public IP Addresses With Inside Servers.......................................7-20
7.5.4 Example 4: NAT Unfriendly Application Programs........................................................7-24
ADVANCED MANAGEMENT...................................................................................................................III
Chapter 8 Filter Configuration...................................................................................................................8-1
8.1 About Filtering...........................................................................................................................8-1
8.2 Configuring a Filter Set .............................................................................................................8-4
8.2.1 Filter Rules Summary Menus ............................................................................................8-7
8.3 Configuring a Filter Rule...........................................................................................................8-9
8.3.1 TCP/IP Filter Rule .............................................................................................................8-9
8.3.2 Generic Filter Rule...........................................................................................................8-14
8.4 Filter Types and NAT..............................................................................................................8-16
