Chapter 11 - Ip Addressing; Ip Addressing; Plug And Play With Nat - Tut Systems SMS2000 User Manual

IP Addressing

Chapter 11 - IP Addressing

Tut Systems' Expresso Subscriber Management System (SMS2000) and Operation
Center Software (OCS) offer a complete solution for delivering and controlling Internet
Protocol (IP) based services to subscribers.
The SMS2000 allows almost any type of in-building network infrastructure to be
transformed into a robust public network, dramatically reducing configuration headaches,
minimizing undesirable interactions between subscribers, and allowing the service
provider to deliver a flexible suite of IP services over a common infrastructure.
IP Addressing
The SMS2000 operates differently from legacy networks. This section describes some of
the differences.
The SMS2000 combines several functions of a router, DHCP server, firewall, and
network access server, as well as new functions into an integrated platform. As a result, it
is possible to create flexible and efficient configurations to deliver networking services.
The SMS2000, unlike most network devices, can treat every client attached to the
subscriber side of the network as if it were on a separate LAN. The SMS2000 can do this
for all types of subscriber media, including Expresso GS/MDU Chassis and associated
HomeRun, LongRun or EoVDSL line cards, MDU Lite, Ethernet, VLAN Ethernet, and
wireless. In fact, the SMS2000 automatically adjusts its internal routing system to
accommodate clients that have a network configuration on a foreign network or a
configuration that has been arbitrarily set.

Plug and Play With NAT

Figure 11-1 shows a sample configuration of plug and play with NAT; client A and client
B are two separate configurations.
TUT Systems, Inc Page 69 of 104 P/N 220-06288-20