Security and Performance
in xDSL Networks

xDSL Service & Security Characteristics

xDSL Service

xDSL Level 2 Service Options

Level 2 and level 3  Service Provider

Security Risks Associated with xDSL

Are these problems unique?

Is “Always Connected” different from “dialed”?

Caveat for Home & Small Businesses, and Power Users

What about “Always connected and shared?”

“Broadband-width” enables a new set of applications… and issues

Issue: Administrative control of desktop

Issue: Multiple Connections

Issue: Backdoors

Issue: File Security, Information Confidentiality

Issue: Transport Security

Step 1: Develop a Security Policy

Step 2: Implement the Policy

Desktop Security Measures

OS Security Measures

File System Access Controls

File and Hard Disk Security Measures

So, you want to host your own server?

Unauthorized Services

Measures for compartmentalizing data

Home and Small Office LANs

Filtering at Home and Small Office LANs

Managing Home and Small Office LANs

Applying Encryption (#1)

Applying Encryption (#2)

Applying Encryption (#3)

Multiple connections on single PC

Other “Best Practices”

Strong Authentication

Testing your security measures

Performance & DSL networks

SLA’s and DSL access lines

Measuring & Monitoring performance

Teleworker and Poor man alternatives..

Conclusions