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NAT & Port Forwarding Screen, Configuring Servers Behind Port Forwarding Example

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Chapter 9 WAN Table 24 Network > WAN > Internet Connection: PPTP Encapsulation (continued) LABEL DESCRIPTION Automatically change the LAN IP Select this option to have the NBG6818 change its LAN IP address to 10.0.0.1 or 192.168.123.1 accordingly when the NBG6818 gets a dynamic WAN IP address in the same subnet as the LAN IP address. See Section 9.3.1 on page 78 for more information. Apply Cancel The NAT, DHCP server and firewall functions on the NBG6818 are still available in this mode. Click Apply to save your changes back to the NBG6818. Click Cancel to begin configuring this screen afresh. 9.5 NAT & Port Forwarding Screen Use Port Forwarding to forward incoming service requests from the Internet to the server(s) on your local network. Port forwarding is commonly used when you want to host online gaming, P2P file sharing, or other servers on your network. You may enter a single port number or a range of port numbers to be forwarded, and the local IP address of the desired server. The port number identifies a service; for example, web service is on port 80 and FTP on port 21. In some cases, such as for unknown services or where one server can support more than one service (for example both FTP and web service), it might be better to specify a range of port numbers. You can allocate a server IP address that corresponds to a port or a range of ports. Note: TCP port 7547 is reserved for system use. Note: Many residential broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP may periodically check for servers and may suspend your account if it discovers any active services at your location. If you are unsure, refer to your ISP. Configuring Servers Behind Port Forwarding (Example) Let's say you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in the example), port 80 to another (B in the example) and assign a default server IP address of 192.168.123.35 to a third (C in the example). You assign the LAN IP addresses and the ISP assigns the WAN IP address. The NAT network appears as a single host on the Internet. NBG6818 User's Guide 87

Section	Page
ARMOR G1	1
Document Conventions	3
Contents Overview	4
Table of Contents	5
User’s Guide	10
Introduction	11
1.1 Overview	11
1.2 Applications	11
1.3 Ways to Manage the NBG6818	12
1.4 Good Habits for Managing the NBG6818	12
1.5 Resetting the NBG6818	13
1.5.1 How to Use the RESET Button	13
1.6 The WPS Button	13
1.7 LEDs	14
1.8 Desk Mounting	15
1.9 Wall Mounting	15
Wizard	17
2.1 Overview	17
2.2 Accessing the Wizard	17
The Web Configurator	27
3.1 Overview	27
3.2 Accessing the Web Configurator	27
3.3 Navigation Panel	29
3.3.1 Standard Mode Navigation Panel	30
3.3.2 Bridge Mode Navigation Panel	32
NBG6818 Modes	34
4.1 Overview	34
4.2 Modes	34
Standard Mode	36
5.1 Overview	36
5.2 What You Can Do	36
5.3 Standard Mode Status Screen	36
Bridge Mode	39
6.1 Overview	39
6.2 What You Can Do	39
6.3 Setting your NBG6818 to Bridge Mode	39
6.3.1 Accessing the Web Configurator in Bridge Mode	40
6.4 Bridge Mode Status Screen	41
Tutorials	42
7.1 Overview	42
7.2 Run a Speed Test	42
7.3 Configure the NBG6818’s WiFi Networks	43
7.4 Enable or Disable a WiFi Network	45
7.5 Add Clients to a Profile	46
7.6 Set a Profile’s WiFi Schedule	47
7.7 Pause or Resume Internet Access on a Profile	49
7.8 Turn on or off the NBG6818’s LED (Light)	50
7.9 Change Your NBG6818 Operating Mode	51
7.10 Configure a Port Forwarding Rule	52
Technical Reference	55
Applications	56
8.1 Overview	56
8.1.1 What You Can Do	56
8.1.2 What You Need To Know	56
8.1.3 Before You Begin	57
8.2 Parental Control	57
8.2.1 Device Screen	57
8.3 OpenVPN Server/Client	61
8.3.1 OpenVPN Server Screen	61
8.3.2 OpenVPN Account Screen	63
8.3.3 OpenVPN Client Screen	65
8.4 USB Application	67
8.4.1 SAMBA Server Screen	67
8.4.2 FTP Server Screen	69
8.4.3 USB Media Sharing Screen	71
8.5 Access Your Shared Files From a Computer	73
8.5.1 Using Windows Explorer	73
8.5.2 Using FTP Program	74
WAN	77
9.1 Overview	77
9.2 What You Can Do	77
9.3 What You Need To Know	78
9.3.1 Configuring Your Internet Connection	78
9.4 Internet Connection Screen	79
9.4.1 IPoE Encapsulation	79
9.4.2 PPPoE Encapsulation	82
9.4.3 PPTP Encapsulation	85
9.5 NAT & Port Forwarding Screen	87
9.5.1 Add Port Forwarding Rule Screen	89
9.6 Passthrough Screen	91
9.7 Port Trigger Screen	92
9.7.1 Add Port Trigger Rule Screen	94
9.8 Dynamic DNS Screen	95
9.9 UPnP Screen	96
9.9.1 Turning On UPnP in Windows 7 Example	97
9.9.2 Turning on UPnP in Windows 10 Example	99
Wireless LAN	102
10.1 Overview	102
10.1.1 What You Can Do	102
10.1.2 What You Should Know	103
10.2 Main WiFi Screen	106
10.3 Guest WiFi Screen	108
10.4 MAC Filter Screen	108
10.4.1 Add MAC Address Screen	109
10.5 WPS Screen	110
10.6 Scheduling Screen	112
LAN	113
11.1 Overview	113
11.2 What You Can Do	113
11.3 What You Need To Know	113
11.4 LAN IP Screen	114
11.4.1 Static DHCP Table-Add/Edit Rule Screen	117
11.4.2 Configure LAN Screen in Bridge Mode	119
11.5 IPv6 LAN Screen	120
Security	123
12.1 Overview	123
12.1.1 What You Can Do	123
12.1.2 What You Need To Know	123
12.2 IPv4 Firewall Screen	124
12.2.1 IPv4 Firewall-Add Rule Screen	126
12.3 IPv6 Firewall Screen	127
12.3.1 IPv6 Firewall-Add Rule Screen	128
System	130
13.1 Overview	130
13.2 What You Can Do	130
13.3 Status Screen	130
13.4 General Setting Screen	133
13.5 Remote Access Screen	135
13.6 Maintenance Screen	136
13.7 Operating Mode Screen	137
13.8 Logs Screen	139
Troubleshooting	141
14.1 Overview	141
14.2 Power, Hardware Connections, and LEDs	141
14.3 NBG6818 Access and Login	142
14.4 Internet Access	143
14.5 Resetting the NBG6818 to Its Factory Defaults	144
14.6 Wireless Connections	144
14.7 USB Device Problems	146
Customer Support	147
Setting Up Your Computer’s IP Address	153
Common Services	172
Legal Information	175

Match case Limit results 1 per page

Chapter 9 WAN

NBG6818 User’s Guide

9.5

NAT & Port Forwarding Screen

Use Port Forwarding to forward incoming service requests from the Internet to the server(s) on your local

network. Port forwarding is commonly used when you want to host online gaming, P2P file sharing, or

other servers on your network.

You may enter a single port number or a range of port numbers to be forwarded, and the local IP

address of the desired server. The port number identifies a service; for example, web service is on port 80

and FTP on port 21. In some cases, such as for unknown services or where one server can support more

than one service (for example both FTP and web service), it might be better to specify a range of port

numbers. You can allocate a server IP address that corresponds to a port or a range of ports.

Note:

TCP port 7547 is reserved for system use.

Note:

Many residential broadband ISP accounts do not allow you to run any server processes

(such as a Web or FTP server) from your location. Your ISP may periodically check for

servers and may suspend your account if it discovers any active services at your

location. If you are unsure, refer to your ISP.

Configuring Servers Behind Port Forwarding (Example)

Let's say you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in the example), port 80 to

another (B in the example) and assign a default server IP address of 192.168.123.35 to a third (C in the

example). You assign the LAN IP addresses and the ISP assigns the WAN IP address. The NAT network

appears as a single host on the Internet.

Automatically

change the LAN IP

Select this option to have the NBG6818 change its LAN IP address to 10.0.0.1 or

192.168.123.1 accordingly when the NBG6818 gets a dynamic WAN IP address in the same

subnet as the LAN IP address. See

Section 9.3.1 on page 78

for more information.

The NAT, DHCP server and firewall functions on the NBG6818 are still available in this mode.

Apply

Click

Apply

to save your changes back to the NBG6818.

Cancel

Click

Cancel

to begin configuring this screen afresh.

Table 24

Network > WAN > Internet Connection: PPTP Encapsulation (continued)

LABEL

DESCRIPTION