Chapter 16 Universal Plug-and-Play (UPnP)
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16.3.2 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:
• Dynamic port mapping
• Learning public IP addresses
• Assigning lease times to mappings
Windows Messenger is an example of an application that supports NAT traversal
and UPnP.
See the NAT chapter for more information on NAT.
16.3.3 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.
When a UPnP device joins a network, it announces its presence with a multicast
message. For security reasons, the P-320W v3 allows multicast messages on the
LAN only.
All UPnP-enabled devices may communicate freely with each other without
additional configuration. Disable UPnP if this is not your intention.
16.3.4 UPnP and ZyXEL
ZyXEL has achieved UPnP certification from the Universal Plug and Play Forum
UPnP™ Implementers Corp. (UIC). ZyXEL's UPnP implementation supports
Internet Gateway Device (IGD) 1.0.
See the following sections for examples of installing and using UPnP.
Summary of Contents for P-320W v3
Page 2: ......
Page 8: ...Safety Warnings P 320W v3 User s Guide 8 ...
Page 10: ...Contents Overview P 320W v3 User s Guide 10 ...
Page 18: ...Table of Contents P 320W v3 User s Guide 18 ...
Page 20: ...20 ...
Page 24: ...Chapter 1 Getting to Know Your P 320W v3 P 320W v3 User s Guide 24 ...
Page 36: ...Chapter 2 Introducing the Web Configurator P 320W v3 User s Guide 36 ...
Page 54: ...54 ...
Page 72: ...Chapter 4 Wireless LAN P 320W v3 User s Guide 72 ...
Page 76: ...Chapter 5 Wireless Client Mode P 320W v3 User s Guide 76 ...
Page 88: ...Chapter 7 LAN P 320W v3 User s Guide 88 ...
Page 104: ...Chapter 10 VLAN P 320W v3 User s Guide 104 ...
Page 105: ...105 PART III Security Firewall 117 Content Filtering 125 ...
Page 106: ...106 ...
Page 116: ...Chapter 11 WAN P 320W v3 User s Guide 116 ...
Page 124: ...Chapter 12 Firewall P 320W v3 User s Guide 124 ...
Page 130: ...130 ...
Page 134: ...Chapter 14 Static Route P 320W v3 User s Guide 134 ...
Page 140: ...Chapter 15 Remote Management P 320W v3 User s Guide 140 ...
Page 154: ...Chapter 16 Universal Plug and Play UPnP P 320W v3 User s Guide 154 ...
Page 155: ...155 PART V Maintenance and Troubleshooting System 157 Logs 163 Product Specifications 193 ...
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Page 178: ...Chapter 18 Logs P 320W v3 User s Guide 178 ...
Page 184: ...Chapter 19 Tools P 320W v3 User s Guide 184 ...
Page 192: ...Chapter 20 Troubleshooting P 320W v3 User s Guide 192 ...
Page 196: ...Chapter 21 Product Specifications P 320W v3 User s Guide 196 ...
Page 198: ...198 ...
Page 260: ...Index P 320W v3 User s Guide 260 ...
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