Configuring The Remote Modem Router - ESI E-Class Installation Manual

Remote IP Feature Phone Installation Manual Configuring the remote modem/router
Configuring the
remote modem router
This section provides step-by-step procedures for configuring different types of modems that are
commonly used at remote sites. These include the following:
• xDSL modem with a static IP address
• Cable modem with a static IP address
• Dedicated ISDN
• Dial Up ISDN (DIVA LAN ISDN modem)
These procedures assume that the remote access device may or may not be configured for normal data
access from the remote site computer(s). For this purpose, the first part of each procedure includes
steps for configuring the remote site computer and modem device for basic operation. Steps are then
provided for adding the Remote Phone addressing information. If basic data access has already been
established it will not be necessary to repeat the first part of the procedure, proceed to the section for
adding the Remote Phone Addressing.
In some areas, cable modem and xDSL access are offered without static IP addressing. This can be
done with either dynamic addressing (DHCP) or Point-to-Point Protocol over Ethernet (PPPoE). In both
cases a Network Address Translation, or NAT, router will be required. The NAT router will be used
between the modem and the Remote Phone. The following procedures are included and must be
performed in addition to configuring the modem:
• Configuring a NAT router to support DHCP
• Configuring a NAT router to support PPPoE
D.1