TP-LINK TL-ER6120 User Manual download pdf (Page 16)

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Figure 3-2 Network Topology - NAT Mode

If your Router is connecting the two networks of different areas in a large network environment with a

network topology as the Figure 3-3 shown, and forwards the packets between these two networks by

the Routing rules, you can set it to Non-NAT mode.

Figure 3-3 Network Topology – Non-NAT Mode

If your Router is connected in a combined network topology as the Figure 3-4 shown, you can set it to

Classic Mode.

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TL-ER6120 1
Multi-WAN VPN Router 1
COPYRIGHT & TRADEMARKS 2
FCC STATEMENT 2
CE Mark Warning 2
CONTENTS 3
Package Contents 6
Chapter 1 About this Guide 7
Chapter 2 Introduction 9
2.2 Features 10
2.3 Appearance 11
2.3.2 Rear Panel 13
Chapter 3 Configuration 14
3.1.2 System Mode 15
3.1.3 WAN 18
3.1.3.2 WAN1 19
3.1.4 LAN 36
3.1.4.2 DHCP 37
3.1.4.3 DHCP Client 38
3.1.4.4 DHCP Reservation 38
3.1.5 DMZ 40
3.1.6 MAC Address 41
3.1.7 Switch 43
3.1.7.2 Port Mirror 44
3.1.7.3 Rate Control 46
3.1.7.4 Port Config 47
3.1.7.5 Port Status 48
3.2 User Group 49
3.2.1 Group 50
3.2.2 User 50
3.2.3 View 51
3.3 Advanced 52
3.3.1.2 One-to-One NAT 53
3.3.1.3 Multi-Nets NAT 54
3.3.1.4 Virtual Server 57
3.3.1.5 Port Triggering 58
3.3.1.6 ALG 59
3.3.2 Traffic Control 60
3.3.2.2 Bandwidth Control 62
3.3.3 Session Limit 64
3.3.4 Load Balance 65
3.3.4.2 Policy Routing 66
3.3.4.3 Link Backup 67
3.3.4.4 Protocol 69
Routing 70
3.3.5.2 RIP 73
3.3.5.3 Route Table 74
3.4 Firewall 75
3.4.1.2 ARP Scanning 77
3.4.2 Attack Defense 78
Figure 3-48 Attack Defense 79
MAC Filtering 80
3.4.4 Access Control 81
3.4.4.2 Web Filtering 83
3.4.4.3 Access Rules 83
3.4.4.4 Service 86
App Control 87
3.5 VPN 89
3.5.1 IKE 90
3.5.1.2 IKE Proposal 92
3.5.2 IPsec 94
3.5.2.2 IPsec Proposal 98
3.5.2.3 IPsec SA 100
3.5.3 L2TP/PPTP 101
It should be 103
3.5.3.2 IP Address Pool 104
3.6 Services 105
3.6.1.1 General 106
3.6.1.2 IP Address Pool 107
3.6.1.3 Account 108
¾ Account 109
3.6.1.4 Exceptional IP 110
3.6.2 E-Bulletin 111
¾ General 112
¾ E-Bulletin 112
3.6.3 Dynamic DNS 113
3.6.3.1 DynDNS 114
3.6.3.2 No-IP 115
3.6.3.3 PeanutHull 116
3.6.3.4 Comexe 117
3.6.4 UPnP 118
3.7 Maintenance 119
3.7.1.2 Login Parameter 120
3.7.2 Management 122
3.7.2.2 Export and Import 123
3.7.2.3 Reboot 123
3.7.3 License 124
3.7.4 Statistics 125
3.7.5 Diagnostics 127
3.7.5.2 Online Detection 129
3.7.6 Time 130
3.7.7 Logs 131
Chapter 4 Application 133
4.2 Network Topology 134
4.3 Configurations 134
4.3.1.1 System Mode 135
4.3.1.2 WAN Mode 135
4.3.1.3 Internet Connection 135
4.3.1.4 Link Backup 136
4.3.2 VPN Setting 137
4.3.2.2 PPTP VPN Setting 141
4.3.3 Network Management 142
4.3.3.2 App Control 144
4.3.3.3 Bandwidth Control 144
4.3.4 Network Security 146
4.3.4.1 LAN ARP Defense 147
4.3.4.2 WAN ARP Defense 148
4.3.4.3 Attack Defense 149
4.3.4.4 Traffic Monitoring 149
Chapter 5 CLI 152
5.2 Interface Mode 155
5.3 Online Help 156
5.4 Command Introduction 157
5.4.1 ip 158
5.4.2 ip-mac 158
5.4.3 sys 158
5.4.4 user 160
5.4.5 history 161
5.4.6 exit 162
Appendix B FAQ 164
Appendix C Glossary 166

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