Freescale Semiconductor SG2106-2 User Manual

SOHO

Smart Gateway DSL Router

Overview

Digital subscriber line (DSL) is the world's
most prevalent broadband technology for
residential and SOHO subscribers.
According to the DSL Forum, approximately
36 million DSL lines are now installed
worldwide. DSL will continue to gain
momentum as subscribers demand higher
bandwidth and multiservice access (voice/
video/data).

DSL ROUTER CONFIGURATION WITH OPTIONAL VPN

DSL Router

Ethernet

USB

WLAN

Customer premises equipment (CPE)
manufacturers have responded to the
steady growth of the DSL market by
developing new generations of routers that
enable subscribers to connect a variety of
computing and peripheral devices, such as
desktop PCs, laptops, PDAs, printers and
servers.

Internet

xDSL

DSLAM

Key Benefits

> Allows the DSL connection to

be shared among many home
network devices, including
PCs, laptops, and printers

> Single DSL router device

functions like a DSL modem
and an Internet sharing
SOHO router

> Supports optional VPN

functionality

> Enables subscribers to

connect with their workplace
from home

> Allows home office

connection from the external
world

> Allows pass through for VPN

clients

> Supports three types of VPN:

PPTP, L2TP, and IPsec

PC In-Home

Service Provider

ILEC / CLEC

Freescale Ordering Information

Part Number Product Highlights Additional Information

DSP56L307 Programmable DSP

MPC180 Security Processor

MPC857DSL PowerQUICC™ Integrated Communications Processor

MPC859DSL PowerQUICC Integrated Communications Processor

Note: Search on the listed part number.

www.freescale.com

Note

Design Challenges

Time-to-market and system cost are key
considerations in designing DSL router
products. Design cycles for routers are
relatively short, which is typical for
consumer electronics products. System
developers often must speed consumer
premises equipment (CPE) products to
market in a matter of months to achieve
revenue goals. Developing complex
designs from scratch and having to work
with multiple hardware and software
vendors not only impacts time-to-market,
but it can also increase development
costs. System integration involving

PROTOCOL STACKS FOR DSL ROUTER WITH OPTIONAL VPN

operating systems, communication
software stacks, and board support
packages (BSPs) also contribute to the
burgeoning cost of creating new router
applications. Increasing competition
requires the timely delivery of DSL
products to the router marketplace.

Freescale Semiconductor Solution

The solution is DSL router software from
Metrowerks, a Freescale Semiconductor
company. When combined with a
Freescale Semiconductor Smart
Gateway reference platform,
Metrowerks' DSL router software
provides a complete Linux® OS-based

HTML UI for End User and

Programmer APIs for Application Developer

solution that enables developers to
speed their router products to market.

DSL Router software is a production­ready development environment for
designers and manufacturers of DSL
router equipment. It provides a complete
set of protocol stacks for DSL CPE
devices, including support for optional
virtual private network (VPN) capability.
Metrowerks' DSL router software
leverages the scalability of Linux, is
based on interoperable open standards,
and includes an easy-to-use HTML
interface for router configuration and
administration.

Protocol

MIBs

DHCP

Security

Library

Packet

Filter

ILMI

Address

Management

RIP

Bridge

OAM

F4 / F5

Dynamic

DNS

IPsec

PPTP,

L2TP

MPOA

TCP / IP

Operating System

SNMPv3

IKE,

KMD

PPP,

PPPoe

PPPoA

HTTP

Server

IGMP
Proxy

NAT

CLIP

SYSLOG

Remote

Software

Upgrades

SG2106-2

Additional Benefits

> Provides IEEE 802.11b wireless LAN

connectivity for multiple home network
devices through wireless access point
functionality

> Allows file/folder sharing in the home

network LAN (Windows

®

OS file/print

share)

> Enables Web server or application

server hosting through DMZ
configuration

> Stateful IP packet filter protects

against malicious attacks

> Provides parental protection by

blocking Web access for specified
URLs

> Includes a Web-based UI for DSL

router configuration and
administration

> Supports SNMP-based remote

management

> Includes convenient software upgrade

procedure

Specifications

Data over DSL Software

> Multiprotocol encapsulation over ATM

per RFC 1483

> Classic IP-over-ATM per RFC 2225

> ATM/DSL management features

(OAM f4/F5 and ILMI)

Bridging and Routing

> Bridging based on IEEE 802.1d

protocol, RIP version 2.0 routing per
RFC 2453

> Support for multicast and unicast

filters based on source and
destination MAC

> Support for multicast traffic through

IGMP proxy

Optional VPN Software

> Supports three types of VPN: L2TP

(RFC 2661), PPTP (RFC 2637),
IPSec (RFC 2401, 2406)

> Provides software encryption libraries

for SHA-1, MD5, 3DES and AES, and
APIs for easy integration with third­party encryption software libraries

> Provides well-defined interfaces for

using a hardware encryption
processor for improved VPN
performance

> Supports both manual and dynamic

configuration of IPSec policies (using
IKE)

> Supports MSCHAPv2 (RFC 2759),

MPPE (RFC 3078) with RC4/ARC4
encryption

Address Management

> Supports WAN interface IP address

acquisition through either DHCP (RFC
2131, 2132) or PPPoE

> Facilitates static IP addressing of the

DSL router WAN interface

> Supports dynamic and static

addressing (mixed-mode addressing)
of home network devices

> Supports host name based resolution

in the home network through dynamic
DNS (RFC 1034, 1035, 2136, 2535)

> Synchronized address management

framework ensures address change
notifications between various
modules, which makes in-home
device address configuration changes
transparent to users

> PPP/PPPoE support (PPP: RFC

1661, PPPoE: RFC 2516, PAP: RFC
1334, CHAP: RFC 1994)

NAT and Firewall

> Robust NAT implementation per RFC

1631 and RFC 2993

> NAT supports both pass through and

port forwarding

> Built-in NAT ALGs for PING, FTP,

L2TP, PPTP, IPSec, SMTP, RTSP,
RTP, H.323 applications, plus APIs to
develop additional ALGs

> Robust implementation of stateful

Layer 2 IP packet filter, provides
protection against attacks: IP Spoof,
SYN flood, IP Smurf, LAND, Ping of
Death, UDP Echo Storm, Reassembly

> Packet filter rules are configurable

through HTML UI, and all events
related to packet filter policy violations
or suspicious activities are
appropriately logged

Remote Management
> SNMPv1/v2/v3 based management

(RFC 1157, 2271-2274)t

> Supports the following protocol MIBs:

• MIB2–RFC 1213

• NAT MIB–working group draft

• RIP MIB–RFC 1724

• DHCP MIB–working group draft

> User-initiated software/firmware

upgrades

Local Management

> Provides a small-footprint HTTP1.1

Web-server from Go-ahead.com

> Extensive HTML user interface for

DSL router management and
configuration by end user

> Parental protection URL filter through

HTTP1.1 proxy

> RADIUS client-based user

authentication (RFC 2865) for
controlling access to DSL router
administration UI

> Restoration of factory default settings

in case of incorrect user
configurations

SG2106-3

Development Tools

Too l Typ e Product Name Vendor Description

Reference Design RDMPC857IAD Freescale Semiconductor Smart Gateway 857 IAD Reference Platform

Development Support

Ven dor Description Contact Information

Metrowerks DSL Router Software for Combined use with Freescale Semiconductor

Smart Gateway Reference Platform

www.metrowerks.com

Learn More: Contact the Technical Information Center at [phone] or [phone].
For more information about Freescale products, please visit www.freescale.com.

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© Freescale Semiconductor, Inc. 2004. All rights reserved.

SG2106
REV 1
12/2004

December2004