Table of Contents
Declaration of Conformity .............................................................................................................................................................iii
Important Safety Precautions ........................................................................................................................................................v
Installation Precautions................................................................................................................................................................vii
Limited Product Warranty .............................................................................................................................................................ix
Table of Contents...........................................................................................................................................................................xi
1 Related Documents ............................................................................................................................................................1-1
2 Overview ..............................................................................................................................................................................2-1
2.1 Introduction...............................................................................................................................................................2-1
2.2 Applications ..............................................................................................................................................................2-1
2.3 Router Types............................................................................................................................................................2-2
2.4 Architecture ..............................................................................................................................................................2-3
2.4.1 Block Diagram..............................................................................................................................................2-3
2.4.2 Ethernet Switch ............................................................................................................................................2-3
2.4.3 IP Router......................................................................................................................................................2-3
2.4.4 SHDSL Modem ............................................................................................................................................2-3
3 Features ...............................................................................................................................................................................3-1
3.1 Network connections ................................................................................................................................................3-1
3.1.1 Bridging ........................................................................................................................................................3-1
3.1.2 Routing.........................................................................................................................................................3-1
3.1.3 Dynamic Host Configuration Protocol (DHCP).............................................................................................3-1
3.1.4 Point-to-Point Protocol over Ethernet (PPPoE)............................................................................................3-2
3.1.5 IPSEC VPN ..................................................................................................................................................3-3
3.1.6 Point-to-Point Tunneling Protocol (PPTP)....................................................................................................3-3
3.2 Security.....................................................................................................................................................................3-3
3.2.1 Access Control .............................................................................................................................................3-3
3.2.2 Port Forwarding............................................................................................................................................3-4
3.2.3 DMZ Host.....................................................................................................................................................3-5
3.2.4 Port Triggering .............................................................................................................................................3-5
3.2.5 Website Restrictions ....................................................................................................................................3-5
3.2.6 Network Address Translation (NAT) ............................................................................................................3-5
3.2.7 Advanced Filtering .......................................................................................................................................3-6
3.2.8 Security Log .................................................................................................................................................3-6
3.3 VLAN ........................................................................................................................................................................3-6
3.3.1 Switch VLAN modes ....................................................................................................................................3-6
3.3.2 Router VLAN................................................................................................................................................3-6
3.3.3 VLAN Examples ...........................................................................................................................................3-7
3.4 Quality of Service (QoS)...........................................................................................................................................3-7
3.4.1 Traffic Priority...............................................................................................................................................3-7
3.4.2 Traffic Shaping .............................................................................................................................................3-8
3.4.3 Traffic Shaping .............................................................................................................................................3-8
Revision: 2007-05-24
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