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Administrator’s Guide for the V500 System
3 - 12 www.polycom.com/videodocumentation
Configure the V500 system for specific products as follows:
Systems deployed outside a firewall are potentially vulnerable to unauthorized access. Visit
the Polycom Security Center at www.polycom.com for timely security information. You can
also register to receive periodic email updates and advisories.
NAT Configuration Lets you specify whether the system should determine the
NAT Public WAN Address automatically.
• If the system is behind a NAT that allows HTTP traffic, select
Auto.
• If the system is behind a NAT that does not allow HTTP
traffic, select Manual.
• If the system is not behind a NAT or is connected to the IP
network through a Virtual Private Network (VPN), select Off.
• If the system is behind a firewalled NAT router that is
UPnP™ (Universal Plug and Play) certified, select UPnP.
Many routers used in homes and small businesses support
UPnP NAT traversal. If this is your situation, try selecting
UPnP first. If this selection does not work for your router,
select Auto or Manual.
NAT Public (WAN)
Address
Displays the address that callers from outside the LAN use to
call your system. If you chose to configure the NAT manually,
enter the NAT Public Address here.
NAT is H.323
Compatible
Specifies that the system is behind a NAT that allows HTTP
traffic.
Address Displayed in
Global Directory
Lets you choose whether to display this system’s public or
private address in the Global Directory.
If you use this type of
NAT or firewall: Configure your V500 system this way:
Use Fixed Ports System is
Behind a NAT
NAT is H.323
Compatible
Cisco
®
PIX
®
NOTE: Do not select the
Fix Up H.323 feature.
Ye s Ye s No
Cisco
®
Router NAT No No No
Linksys
®
Ye s Setting is ignored No
Netgear
®
No No Ye s
SMC
®
Barricade™ Ye s Ye s No
Setting Description