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Configuring the Network
Basic Setup
Cisco SPA232D Administration Guide 30
3
You can configure the ATA to operate in one of the following modes:
• NAT: Network Address Translation (NAT) is a function that allows multiple
devices on a private network to share a public, routable IP address to
establish connections over the Internet. To enable Voice over IP service to
co-exist with NAT, some form of NAT traversal is required, either on the ATA
or another network device. Use this option if your ATA connects to one
network on the WAN port (10.0.0.0 for example) and to another network on
the LAN port (192.168.0.0 for example). This option is selected by default
and is suitable for most deployments.
• Bridge: Bridged mode is used if the ATA is acting as a bridge device to
another router. Choose this option if your ATA bridges a network (10.0.0.0 for
example) to its LAN port (with connected devices also in the 10.0.0.x range).