- NetComm Modem Router User Guide
Table Of Contents
- Contents
- Overview
- NB5 Package Contents Note
- Minimum System Requirements
- Front Indicators
- Back Panel
- Resetting Factory Defaults
- Do I need a Micro filter?
- Default Settings
- Quick Start Guide
- Connecting your NB5 ADSL Modem via ETHERNET
- Connecting your NB5 ADSL Modem via USB
- Setting up your ADSL Router
- Log into your ADSL Router
- Quick Start Menu
- Connecting your ADSL Router
- Step 1: Connecting the ADSL Router to Your Computer/Notebook
- Step 1.1 Connecting to the Ethernet/USB
- Step 1.2 Connecting to the ADSL Line
- Step 1.3 Connecting to the Power Outlet
- Step 1.4 Powering On
- Step 2: Configuring Your Ethernet Network Card / Installing Your USB Device
- 2.1 Configuring Your Ethernet Network Card
- 2.2 Installing the USB Device Driver
- Step 3: Configuring Your Internet Browser
- Step 4: Connecting to the Internet
- Firewall Configuration
- Introduction to Firewalls
- Network Address Translation and Port Mapping
- Dedicated Firewalls
- Advanced Configuration of your ADSL Router
- Log into your ADSL Router
- Advanced Configuration of your ADSL Router-Login Settings
- Advanced Menus
- Introduction to Setup and Advanced Menus
- Configuring the ADSL Connection
- The Setup Menu
- WAN Setup
- PPPoE Connection
- PPPoA Connection Setup
- DHCP Connection Setup
- Static Connection Setup
- Bridged Connection Setup
- CLIP [Classical IP over ATM] Connection Setup
- LAN Setup
- DHCP Configuration
- Management IP
- The Advanced Menu
- UPnP
- SNMP
- IP QoS
- LAN Clients
- MAC Filter Control
- Enable/Disable MAC Filtering
- Create MAC Filter Rules
- Edit or Delete MAC Filter Rules
- Hidden MAC Filter Rules
- Multicasting
- Static Routing
- Dynamic Routing
- Port Forwarding
- Access Control
- IP Filters
- DMZ Configuration
- Tools Menu
- System Commands
- User Management
- Update Firmware
- Ping Test
- Modem Test
- Reboot
- Log Out
- Status Menu
- Network Statistics
- Connection Status
- DHCP Clients
- Modem Status
- Product Information
- System Log
- Appendix A: Troubleshooting
- The ADSL Router is not functional
- I can't connect to the ADSL Router.
- The DSL Link LED continues to blink but does not go solid
- The DSL Link LED is always off
- Appendix B: ADSL Router terms
- What is a firewall?
- What is NAT?
- What is a DMZ?
- What is a Gateway?
- Appendix C: Features
- ADSL/ATM Support
- Encapsulation Support
- Network Support
- Management Support
- Security Support
- External Connectors:
- Appendix D: Cable Connections
- RJ-45 Network Ports
- Twisted pair cables
- Straight and crossover cable configuration
- RJ11 connector and cable
- 605 to RJ-11 adapter
- USB cable
- 9 Pin (RS-232 ) Serial Cable
- Appendix E: Registering your NetComm Product
- Contact Information
- Legal & Regulatory Information
- Product Warranty
Advanced
NetComm NB5 Ethernet/USB Modem Router YML717 Rev1
62 www.netcomm.com.au
Port Forwarding
Port Forwarding is necessary because NAT [=Network Address Translation] only forwards traffic
from the Internet to the LAN if a specific port mapping exists in the NAT translation table. Because
of this, the NAT provides a level of protection for computers that are connected to your LAN.
However, this also creates a connectivity problem when you want to make LAN resources available
to Internet clients, which you may want to do to play network games or host network applications.
Thus Port Forwarding is necessary to run certain games, chat clients, video-conferencing and other
kinds of application. You might also need to configure port-forwarding if you intend to host a web
server or mail server that is to be visible outside your LAN.
TIP: In situations where you are hosting a Web Site or, for example, setting up a
regular NetMeeting link, it is advisable to consider implementing a Fixed IP
address, otherwise the dynamic IP address allocated by DHCP will need to
be communicated prior to every user session.
To access Port Forwarding, click on Advanced>Firewall>Port Forwarding