ISDN LAN MODEM

2 FUNCTIONALITY DESCRIPTION

This chapter provides a description of the key functionality of the ISDN LAN

Modem. It includes the following topics:

Connection Types

Call Routing Protocol and IP Address Translation

Understanding Multilink PPP and Bandwidth on Demand

Understanding Dynamic Bandwidth Allocation

Understanding PPTP

For a basic understanding of ISDN and networking, refer to Appendix A.

Connection Types

The ISDN LAN Modem provides LAN side and WAN side connections.

LAN Side Connection On the LAN side, up to four users can connect to the LAN Modem’s built in Ethernet hub, or up to 25 users may connect to the LAN Modem via an external user-supplied hub, enabling users to share files and printers and to use Internet email. An example of ten workstation connections is shown in An example of 10 workstation connections is shown in Figure 4.

10 Mbps

Ethernet LAN

OfficeConnect®

Hub 8 TPO

Office

Connect

Hub

OfficeConnect®

ISDN LAN Modem

OfficeConnect®

ISDN LAN Modem

Figure 4 ISDN LAN Modem LAN Connection with 10 Workstations

An example of a single connection is shown in Figure 5.

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3Com 3C892 manual Functionality Description, Connection Types, An example of a single connection is shown in Figure