ViewStation EX, ViewStation FX Administrator's Guide VS4000
Administrator’s Guide for ViewStation EX, ViewStation FX, and VS4000
3-8  www.polycom.com/videodocumentation
Configure the 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.
If you use this type of 
NAT or firewall... Configure your 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










