ZyXEL Communications Prestige 941 Technical Information

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Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/
1 of 46 2/3/06 11:07 AM
Navas Cable
Modem/DSL Tuning
Guide
TM TechTV
Appearances
by John
Navas
Cable Modem and DSL (e.g., ADSL, G.lite, IDSL, SDSL) tips on increasing speed, enhancing security,
fixing problems, sharing a connection, and more.
Copyright 1999-2005 The Navas Group
SM
, All Rights Reserved.
Permission is granted to copy for private non-commercial use only.
Posted as <http://Cable-DSL.home.att.net/>. Updated: Wednesday, February 2, 2005.
Contents
Quick and Easy!
Speedup your connection
Before you start
Increasing TCP Receive Window for:
Microsoft Windows (95/98/Me/NT/2000/XP)
Apple Macintosh
Why TCP Receive Window matters
Dealing with latency, packet loss, and/or upload speed
Urban Myths exposed:
Why tweaking TTL won't increase speed
Why the System.ini Tweak Doesn't Work
How to check your connection speed
How to find out what's slowing you down
How the Upstream Cap can affect Downstream Speed
Microsoft's TCP/IP retransmission bug
Reduce DNS errors in Windows 2000/XP (new!)
Security and Privacy
Security on Cable Modem or DSL (important)
Microsoft Windows (95/98/Me/NT/2000/XP)
OS/2
Apple Macintosh
Hardware Firewalls (SOHO Routers)
Check Your Security
Privacy on the Internet (important)
PPPoE/PPPoA
What is PPPoE?
Access problems
Long hangs at startup or when accessing the Internet
What is PPPoA?
Sharing your connection
Sharing Cable Modem or DSL on multiple computers
Wired (phoneline, powerline) networking
Wireless networking
Low-cost server for your small network
How-to:
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Summary of Contents

Page 1 - Modem/DSL Tuning

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/1 of 46 2/3/06 11:07 AMNavas Cable Modem/DSL Tuning GuideTM TechTVAppearancesby John

Page 2 - Quick and Easy!

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/10 of 46 2/3/06 11:07 AMNetwork Monitor Agent, which is located in the Windows 98 CD

Page 3 - Before you start

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/11 of 46 2/3/06 11:07 AMWhatRoute (freeware; recommended)[Jump to Contents]How the Up

Page 4 - Method 2

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/12 of 46 2/3/06 11:07 AMMicrosoft has confirmed a TCP/IP retransmission bug in Window

Page 5

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/13 of 46 2/3/06 11:07 AMthan on a temporary dial-up modem connection. The reason is t

Page 6 - 6 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/14 of 46 2/3/06 11:07 AMMake sure that NetBIOS is not enabled on all instances

Page 7 - Packet Loss

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/15 of 46 2/3/06 11:07 AMSecurity Best PracticesFor more information on the real risks

Page 8 - Upload Speed

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/16 of 46 2/3/06 11:07 AM » Cyber Sentinel » Cyber Sitter » Net Nanny

Page 9 - 9 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/17 of 46 2/3/06 11:07 AM » DoorStop » NetBarrierIf you are willing to spend

Page 10 - 10 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/18 of 46 2/3/06 11:07 AM » Macsense XRouter (NAT only*) MaxGate » Ugate-Plus

Page 11

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/19 of 46 2/3/06 11:07 AM » Freesco (successor to Ballantain) » Linux Router

Page 12 - 12 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/2 of 46 2/3/06 11:07 AMServices (servers) on dynamic IPShare your files with NetBIOS

Page 13

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/20 of 46 2/3/06 11:07 AMport scanspyware (See "'Spies' in Your Softwar

Page 14

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/21 of 46 2/3/06 11:07 AMform of a "cookie," usually without your knowledge

Page 15 - Content Filtering

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/22 of 46 2/3/06 11:07 AMprivacy. Also note that firewall blocking alone may cause you

Page 16 - 16 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/23 of 46 2/3/06 11:07 AMAllied Data Technologies » CopperJet 800/E » CopperJ

Page 17

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/24 of 46 2/3/06 11:07 AMKeep RAS Connections Active After Logging Off".Win98SE N

Page 18 - 18 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/25 of 46 2/3/06 11:07 AMNAT, DHCP, Firewall3ComHomeConnect ADSL Modem (PCI)ZyXEL (ZyX

Page 19 - Check Your Security

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/26 of 46 2/3/06 11:07 AM » DB104 10/100 Mbps Ethernet Kit » 3Com » Goo

Page 20 - Privacy on the Internet

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/27 of 46 2/3/06 11:07 AMLow-cost server for your small networkIn addition to typical

Page 21 - 21 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/28 of 46 2/3/06 11:07 AMOption 4: Windows NT/2000/XPMicrosoft used to offer a Small B

Page 22 - What is PPPoE?

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/29 of 46 2/3/06 11:07 AMover NetBIOS (see "File and Printer Sharing (NetBIOS) Fa

Page 23 - Important Notes:

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/3 of 46 2/3/06 11:07 AMIf you want to skip all the discussions and technical explanat

Page 24 - What is PPPoA?

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/30 of 46 2/3/06 11:07 AMSuppose you need to use Windows 95/98/Me Dial-Up Networking (

Page 25 - NAT, DHCP, Firewall

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/31 of 46 2/3/06 11:07 AMUsing multiple Cable Modem, DSL, and/or dial-up modem connect

Page 26 - 26 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/32 of 46 2/3/06 11:07 AM[Jump to Contents]Third-party email serviceWhat do you do if

Page 27 - Option 3: Solaris

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/33 of 46 2/3/06 11:07 AMNewsfeeds.com ($9.95-$19.95 depending on servers)Newsguy.

Page 28 - Option 4: Windows NT/2000/XP

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/34 of 46 2/3/06 11:07 AMProStandard on most modern computersLow costBest for: Not

Page 29 - Remote Control

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/35 of 46 2/3/06 11:07 AM » ZyXEL Prestige 942 DOCSIS Cable Modem Bridge (USB, SUA

Page 30 - destination

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/36 of 46 2/3/06 11:07 AMFor most uses the difference in latency is usually not signif

Page 31 - 31 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/37 of 46 2/3/06 11:07 AMNotes:Any old filter won't do. Do yourself a favor and g

Page 32 - Third-party email service

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/38 of 46 2/3/06 11:07 AMFor general technical information on tracking down sources of

Page 33 - Ethernet

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/39 of 46 2/3/06 11:07 AMremove power from the modem; wait several seconds; and then r

Page 34 - 34 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/4 of 46 2/3/06 11:07 AMLatency*(e.g.,normal DSL or 2-way cable)32KWindowWindows NT NT

Page 35 - Other Cable Modem Resources

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/40 of 46 2/3/06 11:07 AMTurn your modem off when not in use. The modem cannot be comp

Page 36 - 36 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/41 of 46 2/3/06 11:07 AMHomeConnect ADSL Modem Dual Link (USB & Ethernet) 1, 2Rem

Page 37 - 37 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/42 of 46 2/3/06 11:07 AM"Wireless DSL" is not really DSLFixed terrestrial w

Page 38 - 38 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/43 of 46 2/3/06 11:07 AM11 bankruptcy protection, and the future of the Ricochet se

Page 39 - 39 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/44 of 46 2/3/06 11:07 AMSpeed (order to ship delay) Privacy and/or spamRecommended on

Page 40

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/45 of 46 2/3/06 11:07 AMWindows 95NetworkingWindows 98Windows 98 Registry (TCP/IP Reg

Page 41 - Other DSL Resources

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/46 of 46 2/3/06 11:07 AM Protect children while protecting free speech on the Interne

Page 42 - 42 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/5 of 46 2/3/06 11:07 AM(Report problems to John Navas.)This script can also be used

Page 43 - Shopping On-line

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/6 of 46 2/3/06 11:07 AMIncreasing TCP Receive Window for Apple MacintoshCaveat: The f

Page 44 - TCP/IP Resources

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/7 of 46 2/3/06 11:07 AM(1) downlink speed (see "How to check your connection spe

Page 45 - Other Resources

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/8 of 46 2/3/06 11:07 AMUpload SpeedYour upload speed (sending to a remote host) will

Page 46 - 46 of 46 2/3/06 11:07 AM

Navas Cable Modem/DSL Tuning Guide http://cable-dsl.home.att.net/9 of 46 2/3/06 11:07 AM 11 309 ms 375 ms 348 ms 208.178.103.62 12 103 ms

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