ZyXEL Router Prestige 334 User Manual

							Prestige 334 User’s Guide
Chapter 7 Network Address Translation (NAT) Screens 100
IncomingIncoming is a port (or a range of ports) that a server on the WAN uses when it sends 
out a particular service. The Prestige forwards the traffic with this port (or range of 
ports) to the client computer on the LAN that requested the service. 
Start Po rtType a port number or the starting port number in a range of port numbers.
End PortType a port number or the ending port number in a range of port numbers.
TriggerThe trigger port is a port (or a range of ports) that causes (or triggers) the Prestige to 
record the IP address of the LAN computer that sent the traffic to a server on the WAN.
Start Po rtType a port number or the starting port number in a range of port numbers.
End PortType a port number or the ending port number in a range of port numbers.
ApplyClick Apply to save your changes back to the Prestige.
ResetClick Reset to begin configuring this screen afresh.
Table 27   Trigger Port
LABELDESCRIPTION 
						

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Chapter 8 Static Route Screens 102
CHAPTER8
Static Route Screens
This chapter shows you how to configure static routes for your Prestige.
8.1  Static Route Overview
Each remote node specifies only the network to which the gateway is directly connected, and 
the Prestige has no knowledge of the networks beyond. For instance, the Prestige knows about 
network N2 in the following figure through remote node router R1. However, the Prestige is 
unable to route a packet to network N3 because it doesnt know that there is a route through the 
same remote node router R1 (via gateway router R2). The static routes are for you to tell the 
Prestige about the networks beyond the remote nodes.
Figure 35   Example of Static Routing Topology
8.2  Configuring IP Static Route
Click STATIC ROUTE to open the screen as shown next.  
						

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Figure 36   Static Route
The following table describes the labels in this screen.
8.2.1  Configuring Route Entry
Select a static route index number and click Edit. The screen shown next appears. Fill in the 
required information for each static route.
Table 28   Static Route
LABELDESCRIPTION
#Number of an individual static route.
NameName that describes or identifies this route. 
ActiveThis field shows whether this static route is active (Ye s) or not (No).
DestinationThis parameter specifies the IP network address of the final destination. Routing is 
always based on network number. 
GatewayThis is the IP address of the gateway. The gateway is an immediate neighbor of 
your Prestige that will forward the packet to the destination. On the LAN, the 
gateway must be a router on the same segment as your Prestige; over the WAN, 
the gateway must be the IP address of one of the remote nodes.
EditSelect a static route index number and then click Edit to set up a static route on the 
Prestige. 
						

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Chapter 8 Static Route Screens 104
Figure 37   Static Route: Edit
The following table describes the labels in this screen.
Table 29   Static Route: Edit
LABELDESCRIPTION
Route NameEnter the name of the IP static route. Leave this field blank to delete this static route.
ActiveThis field allows you to activate/deactivate this static route.
Destination IP 
AddressThis parameter specifies the IP network address of the final destination.  Routing is 
always based on network number. If you need to specify a route to a single host, use 
a subnet mask of 255.255.255.255 in the subnet mask field to force the network 
number to be identical to the host ID.
IP Subnet Mask Enter the IP subnet mask here.
Gateway IP 
AddressEnter the IP address of the gateway. The gateway is an immediate neighbor of your 
Prestige that will forward the packet to the destination. On the LAN, the gateway 
must be a router on the same segment as your Prestige; over the WAN, the gateway 
must be the IP address of one of the Remote Nodes.
MetricMetric represents the “cost” of transmission for routing purposes. IP routing uses 
hop count as the measurement of cost, with a minimum of 1 for directly connected 
networks. Enter a number that approximates the cost for this link. The number need 
not be precise, but it must be between 1 and 15. In practice, 2 or 3 is usually a good 
number. 
PrivateThis parameter determines if the Prestige will include this route to a remote node in 
its RIP broadcasts.
Select this check box to keep this route private and not included in RIP broadcasts. 
Clear this checkbox to propagate this route to other hosts through RIP broadcasts.
ApplyClick Apply to save your changes back to the Prestige.
CancelClick Cancel to return to the previous screen and not save your changes. 
						

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Chapter 9 UPnP106
CHAPTER9
UPNP
This chapter introduces the Universal Plug and Play feature.
9.1   Universal Plug and Play Overview
Universal Plug and Play (UPnP) is a distributed, open networking standard that uses TCP/IP 
for simple peer-to-peer network connectivity between devices. A UPnP device can 
dynamically join a network, obtain an IP address, convey its capabilities and learn about other 
devices on the network. In turn, a device can leave a network smoothly and automatically 
when it is no longer in use.
9.1.1  How Do I Know If Im Using UPnP?
UPnP hardware is identified as an icon in the Network Connections folder (Windows XP). 
Each UPnP compatible device installed on your network will appear as a separate icon. 
Selecting the icon of a UPnP device will allow you to access the information and properties of 
that device. 
9.1.2  NAT Traversal
UPnP NAT traversal automates the process of allowing an application to operate through 
NAT. UPnP network devices can automatically configure network addressing, announce their 
presence in the network to other UPnP devices and enable exchange of simple product and 
service descriptions. NAT traversal allows the following:
1Dynamic port mapping
2Learning public IP addresses
3Assigning lease times to mappings
Windows Messenger is an example of an application that supports NAT traversal and UPnP. 
See the SUA/NAT chapter for further information about NAT. 
9.1.3  Cautions with UPnP
The automated nature of NAT traversal applications in establishing their own services and 
opening firewall ports may present network security issues. Network information and 
configuration may also be obtained and modified by users in some network environments.  
						

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All UPnP-enabled devices may communicate freely with each other without additional 
configuration. Disable UPnP if this is not your intention. 
9.2  UPnP and ZyXEL
ZyXEL has achieved UPnP certification from the Universal Plug and Play Forum Creates 
UPnP™ Implementers Corp. (UIC). ZyXELs UPnP implementation supports IGD 1.0 
(Internet Gateway Device). At the time of writing ZyXELs UPnP implementation supports 
Windows Messenger 4.6 and 4.7 while Windows Messenger 5.0 and Xbox are still being 
tested.
UPnP broadcasts are only allowed on the LAN.
Please see later in this User’s Guide for examples of installing UPnP in Windows XP and 
Windows Me as well as an example of using UPnP in Windows.
9.3  Configuring UPnP
Click UPnP to display the screen shown next. 
						

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Chapter 9 UPnP108
Figure 38   Configuring UPnP
The following table describes the labels in this screen.
9.4  Installing UPnP in Windows Example
This section shows how to install UPnP in Windows Me and Windows XP.  
Table 30   Configuring UPnP
LABELDESCRIPTION
Enable the Universal Plug 
and Play (UPnP) feature Select this checkbox to activate UPnP. Be aware that anyone could use 
a UPnP application to open the web configurators login screen without 
entering the Prestiges IP address (although you must still enter the 
password to access the web configurator).
Allow users to make 
configuration changes 
through UPnPSelect this check box to allow UPnP-enabled applications to 
automatically configure the Prestige so that they can communicate 
through the Prestige, for example by using NAT traversal, UPnP 
applications automatically reserve a NAT forwarding port in order to 
communicate with another UPnP enabled device; this eliminates the 
need to manually configure port forwarding for the UPnP enabled 
application. 
Allow UPnP to pass through 
firewallSelect this check box to allow traffic from UPnP-enabled applications to 
bypass the firewall. 
Clear this check box to have the firewall block all UPnP application 
packets (for example, MSN packets).
ApplyClick Apply to save your changes back to the Prestige.
ResetClick Reset to begin configuring this screen afresh. 
						

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9.4.1  Installing UPnP in Windows Me
Follow the steps below to install UPnP in Windows Me. 
1Click Sta rt and Control Panel. Double-
click Add/Remove Programs. 
2Click on the Windows Setup tab and 
select Communication in the 
Components selection box. Click 
Details. 
3In the Communications window, select 
the Universal Plug and Play check box 
in the Components selection box. 
4Click OK to go back to the Add/
Remove Programs Properties window 
and click Next.  
5Restart the computer when prompted.