Ip Deployment - Nortel Meridian Installation And Administration Manual

October 2001

IP deployment

Before deploying your Meridian Digital Telephone IP Adapter unit, ensure that
you engineer the IP network properly. You can configure a permanent (Model 1)
or on-demand (Model 2) IP connection. The following guidelines describe
requirements, conditions, and characteristics of each supported IP deployment
option:
Model 1: IP permanent
If using DSL or a cable modem, configure an IP permanent connection.
The Meridian Digital Telephone IP Adapter unit re-establishes its TCP/IP
!
signaling session to the RLC once per minute.
The Meridian Digital Telephone IP Adapter unit supports both static IP
!
and, through DHCP, dynamic IP addressing
Do not configure a remote IP address on the RLC.
!
One virtual private network (VPN) supports multiple Meridian Digital
!
Telephone IP Adapter units.
One Network Address Translation (NAT) router supports only one
!
Meridian Digital Telephone IP Adapter unit.
One Port number and Network Address Translation (PNAT) router supports
!
multiple Meridian Digital Telephone IP Adapter units.
The RLC requires an IP address that the Meridian Digital Telephone IP
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Adapter unit can access.
Model 2: IP on-demand
If your BRI routers incur toll charges, configure an IP on-demand connection.
TCP/IP signaling sessions between the RLC and the Meridian Digital
!
Telephone IP Adapter unit close when calls end.
Configure a static IP address for the Meridian Digital Telephone IP Adapter
!
unit on the RLC for best service.
IP on-demand configuration supports VPNs.
!
IP on-demand configuration does not support NAT or PNAT routers.
!
Both the RLC and Meridian Digital Telephone IP Adapter unit require IP
!
addresses that are accessible from the other unit.
Meridian Digital Telephone IP Adapter Installation and Administration Guide
Planning for installation
37