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36 Meridian Digital Telephone IP Adapter Installation and Administration Guide
Planning for installation Standard 1.1
Deployment
This section presents the Meridian Digital Telephone IP Adapter unit
deployment models (options) that are supported by Nortel Networks.
Transport media
You can only configure the Meridian Digital Telephone IP Adapter unit on the
RLC to use the IP network. For further details on this configuration, refer to
Priority under Remote Port Configuration in the Reach Line Card Installation
and Administration Guide (NTP 555-8421-210).
Network Address Translation
Some network routers run the Network Address Translation (NAT) protocol that
allows multiple devices in the IP network to share the same broadband IP
address. An alternative to running the NAT protocol is to have the network
administrator provide each device with its own broadband IP address.
Meridian Digital Telephone IP Adapter units support NAT functionality, if this
functionality is enabled on your network. You can only connect a single
Meridian Digital Telephone IP Adapter unit behind a NAT router. You can
connect multiple Meridian Digital Telephone IP Adapter units behind a PNAT
router. A PNAT router is a port number and network address translation router. If
you are not sure whether yours is a NAT router or a PNAT router, check with
your vendor.
You must configure your Meridian Digital Telephone IP Adapter unit for IP
permanent allocation if it is connected behind a NAT router. You can assign a
static IP address to your Meridian Digital Telephone IP Adapter unit, or you can
use DHCP to obtain its IP address.