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ViewPoint 8650C
User Guide
connect to but cannot be connected by public networks; the MCU cannot be deployed for a
videoconferencing system over a public network.
Figure 1-11
Figure 1-11 Static NAT networking
A 1
The following aspects are restricted for static NAT networking:
1.4.5 H.460 Networking
H.460 is a series of extensions to the H.323 videoconferencing standard from the ITU.
Introduced in 2005, several of the extensions, including H.460.17, H.460.18 and H.460.19,
deal with firewall and NAT traversal.
Figure 1-12
Issue 10 (2013-07-20)
shows static NAT networking.
NAT A
A2
The GK used in the networking must be an external GK.
The NAT devices must support static IP address mapping.
If the GK is on a private network, you must enable Q.931 routing, H.245 routing, and
NAT from the GK. In addition, you must use the private IP address of the GK when
registering the MCU to the GK.
A terminal that is on the same private network as the MCU cannot be registered with the
GK. Therefore, the terminal must use an IP address to attend a conference.
Multi-layer NAT is not supported.
shows the networking diagram in H.460 mode.
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NAT B
B 1
R o u te r
1 Overview
B 2
B 3
12
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