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Configuration Guidelines for NAT
Configuration Guidelines for NAT
Note: This section only applies to Alti-IP 600 phones or NetMeeting
integrated with AltiView. For third party IP Phones, refer to
AltiGen's NAT Application Note.
The following section discusses the use of NAT (Network Address
Translation) with AltiContact Manager's IP functionality. Configurations
and limitations for using NAT are addressed, and network diagrams
explain the topology of these configurations. The first 3 examples involve
AltiContact Manager configurations for remote IP phones with a public IP
address, with a private IP address behind NAT, and with both private and
public IP addresses, respectively. The last example involves configuration
for a remote branch office environment where multiple IP phones require
connection to AltiContact Manager.
Notes:
•
When AltiContact Manager and the local IP phone both use a public
IP address and a remote IP phone is behind NAT, it is recommended
that you use the NAT configurations as described in "Public Network
Configuration (AltiWare with Public IP Address)" on page 9-16.
•
When AltiContact Manager and local IP phones use private IP address
behind NAT, it is recommended that you use the NAT configurations
as described in "Private Network Configuration (AltiWare with
private IP address and behind NAT)" on page 9-18.
•
When a public IP address is used in the corporate network and there is
insufficient public IP address space for the IP phones, it is
recommended that you use the NAT configurations as described in
"Private and Public Network Configuration (AltiWare with Both
Private and Public IP Addresses)" on page 9-21.
•
When the remote offices have more than 1 (one) IP phone behind
NAT, it is recommended that you use the VPN configurations as
described in "VPN Network Configuration (Connecting to AltiWare
with VPN)" on page 9-24. You may also apply this configuration in
conjunction with the first 3 examples.
•
For single remote IP phones, it is recommended that you use the NAT
configurations as described in the first 3 examples.
9-12 AltiContact Manager Administration Manual
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