Polycom VSX 7000 Administrator's Manual page 38

VSX 7000 Series Administrator's Guide
If you use this type of
NAT or firewall:
® ®a
Cisco PIX
®
Cisco Router NAT
®
Linksys
®
Netgear
®
SMC Barricade™
a. The Fix Up H.323 feature should not be selected.
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Configure the VSX system for specific products as follows:
Configure your VSX system this way:
Use Fixed Ports
Yes
No
Yes
No
Yes
Deployment outside a Firewall
Systems deployed outside a firewall are potentially vulnerable to unauthorized
access. Visit the Polycom Security Center at
information. You can also register to receive periodic email updates and
advisories.
System Is Behind a NAT
Yes
No
Does not matter
No
Yes
www.polycom.com
www.polycom.com/videodocumentation
NAT is H.323 Compatible
No
No
No
Yes
No
for timely security