Compex Technologies NP25G 6C manual Configure UPnP

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Configure UPnP

The following are issues that can arise when using NAT:

Some network applications assume the IP address and port that the client has been assigned are global routable values that can be used on the Internet directly. Often, this is not the case as the client has been assigned a private IP address that can only be used on the LAN.

Other network applications send requests using a socket on a port “A” and expect to receive the reply from a different listening socket on port “Z”. When the NAT router creates a port mapping for port “A”, it won't know that it has to match it with the reply packets addressed to port “Z”.

A number of network protocols assume they will always be able to use certain globally routable well-known ports. However there are several clients in the LAN and at any given time, only one client can be allowed to use a specific well-known port. In the meantime, the other clients will not be able to run any web service requiring the same well-known port.

NAT traversal techniques have been developed as a workaround to allow network-aware applications to discover that they are behind a NAT-enabled device, to learn the external, globally-routable IP address and to configure port mappings to automatically forward packets from the external port of the NAT to the internal port used by the application

– without the user having to manually configure port mapping.

NAT traversal relies on the discovery and control protocols that are part of the Universal Plug and Play (UPnP) architecture. The UPnP specification is based on TCP/IP and Internet protocols that let devices discover the presence and services offered by other UPnP devices in the network. It also supports the following, which are essential for NAT traversal:

Learning public IP address

Enumerating existing port mappings

Adding and removing port mappings

Assigning lease times to mappings

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Contents Page FCC Notice EN 61000-3-3 IEC610000-3-3 Product Safety Table of Contents Appendix View the Technical Specifications Introduction Overview the ProductKey Features FeaturesVirtual Servers based on Port-forwarding, IP-forwarding WDS2 Security Features Install the Hardware Overview the LEDs PC Configuration Setup the SoftwareME… Select Obtain an IP address automatically Configure PC with static IP address for Windows 98SE or ME Configure PC with static IP address for Windows 2K or XP Configuring PCs to be Wireless Clients Configure Wireless Client for Windows XP Step Perform Basic Router SetupStep Access Web Interface Setup Secured Wireless Connection Setup Secured Wireless ConnectionPage Perform Configuration Configure Wireless Setup Disable Security Set Security ModeSetup WEP Page For WPA-Personal Setup WPAFor WPA2-Personal For WPA-Personal-AUTOEnter the GTK Group Transient Key Updates Configure the Advanced Wlan Settings Set Wireless Multimedia WMM WMM Parameters for advanced users Setup WDS2 Follow these steps to change the setup the root access point Follow these settings to setup access point Configure WDS2 link Parameters Description Setup Management PortNone To Setup Dhcp ServerSet Dhcp Mode to Dhcp Server 192.168.168.100 Page Set Dhcp Mode to Dhcp Relay Parameters Description Lease Expired Time View Active Dhcp LeasesReserve IP Addresses for Predetermined Dhcp Clients Step Delete Dhcp Server Reservation Select Statistics View StatisticsSetup WAN Setup WAN for Cable Internet with Dynamic IP Assignment Configuration command menu, click MAC Clone to continue Setup WAN for Cable Internet with Static IP Assignment Setup WAN for Adsl Internet Using PPPoE Enter the IP address of your VPN Server Setup WAN for Adsl Internet using PptpPage Setup WAN for Adsl Internet using L2TP Configure Static Routing On this page, click the Add button Configure NAT Configure Virtual Server Based on DMZ Host Options ConfigurationHit the Add button on the Port Forward Entries Configure Virtual Servers Based on Port ForwardingPage Enter the Private IP Address Page IP Forward Entries page will reflect your new addition ConfigurationConfiguration menu Configure Bandwidth Control for WANConfigure Bandwidth Control for LAN Remote Use Remote ManagementUse Parallel Broadband Page Password Configure Email NotificationEmail address of Sender Use Static Address Translation Use DNS Redirection Redirection Setup Ddns Provider Name ChoiceRegister Now Select 2MyDNS as Ddns Service Provider Page Select DtDNS as Ddns Service Provider Configure UPnP Configuration Configure Packet Filtering Configure SecurityPage ƒ Any day Filtering Configuration table will then be updated Configure URL Filtering Configure Firewall Description Packet Type Icmp TypesSource IP Igmp TypesPage Logs View Firewall LogsUse the System Tools Menu Administer the SystemSet the Time Upgrade the Firmware Settings Profile Reboot the System Change Your Login Password View System Information Appendix Learn About Commonly Used Terms Dsss Ieee Pptp WAN Interface Industry StandardsWAN Type LAN/WLAN InterfaceProfile Backup and Restore Configuration InterfaceFirmware Upgradeable Physical DimensionTechnical Support Centres Technical Support Information