Tp-Link TL-ER5120 [52/146] Advanced
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3.3 Advanced
3.3.1 NAT
NAT (Network Address Translation) is the translation between private IP and public IP, which allows
private network users to visit the public network using private IP addresses.
With the explosion of the Internet, the number of available IP addresses is not enough. NAT provides a
way to allow multiple private hosts to access the public network with one public IP at the same time,
which alleviates the shortage of IP addresses. Furthermore, NAT strengthens the LAN (Local Area
Network) security of the network since the address of LAN host never appears on the Internet.
3.3.1.1 NAT Setup
On this page, you can set up the NAT function.
Choose the menu Advanced→NAT→NAT Setup to load the following page.
Figure 3-29 NAT Setup
The following items are displayed on this screen:
¾ NAPT
Source Port Range:
Enter the source port range between 2049 and 65000, the span of which
must be not less than 100.
¾ NAT-DMZ
Содержание
- Gigabit load balance broadband router 1
- Tl er5120 1
- Ce mark warning 2
- Copyright trademarks 2
- Fcc statement 2
- Contents 3
- Package contents 6
- Chapter 1 about this guide 7
- Conventions 7
- Intended readers 7
- Overview of this guide 7
- Chapter 2 introduction 9
- Overview of the router 9
- Features 10
- Appearance 11
- Front panel 11
- Rear panel 12
- Chapter 3 configuration 14
- Network 14
- Status 14
- System mode 15
- Wan mode 18
- Dhcp client 38
- Dhcp reservation 38
- Mac address 41
- Statistics 43
- Switch 43
- Port mirror 44
- Rate control 46
- Port config 47
- Port status 48
- Port vlan 49
- User group 49
- Advanced 52
- Nat setup 52
- One to one nat 53
- Multi nets nat 54
- Virtual server 57
- Port triggering 58
- Traffic control 60
- Bandwidth control 62
- Session limit 64
- Configuration 65
- Load balance 65
- Session list 65
- Policy routing 66
- Link backup 67
- Protocol 69
- Routing 70
- Static route 70
- Route table 74
- Anti arp spoofing 75
- Firewall 75
- Ip mac binding 75
- Arp scanning 77
- Arp list 78
- Attack defense 78
- Mac filtering 80
- Access control 81
- Url filtering 81
- Access rules 83
- Web filtering 83
- Service 86
- App control 87
- Control rules 87
- Database 89
- Pppoe server 89
- Services 89
- General 90
- Ip address pool 91
- Account 92
- Exceptional ip 94
- E bulletin 95
- List of account 95
- Dynamic dns 97
- Dyndns 98
- Peanuthull 100
- Comexe 101
- Admin setup 103
- Administrator 103
- Maintenance 103
- Login parameter 104
- Factory defaults 106
- Management 106
- Remote management 106
- Export and import 107
- Reboot 107
- Firmware upgrade 108
- Interface traffic statistics 108
- Statistics 108
- Ip traffic statistics 109
- Diagnostics 110
- Online detection 112
- Chapter 4 application 116
- Configurations 116
- Internet setting 116
- Network requirements 116
- Internet connection 117
- System mode 117
- Wan mode 117
- Link backup 118
- Network management 119
- User group 119
- App control 120
- Bandwidth control 121
- Session limit 122
- Lan arp defense 123
- Network security 123
- Attack defense 125
- Wan arp defense 125
- Traffic monitoring 126
- Chapter 5 cli 129
- Configuration 129
- Interface mode 132
- Online help 133
- Command introduction 134
- Ip mac 135
- History 138
- Appendix a hardware specifications 140
- Appendix b faq 141
- Appendix c glossary 143
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