Please help me tweak my Telstra Cable (Australia)

Tuz76 · Post by **Tuz76** » Mon Dec 20, 2004 8:27 pm

Hi Guys,

This is so exciting, and I can't wait to tweak my settings. The problem is I'm not THAT technical so I was wondering if you can outline the best way to start doing this? I have done all the spyware, adaware, SSandD, stuff but I was leaning more towards the following two things.

Everyone is posting their RWINS or something? How do I do that? I just want to start tweaking but have NO idea where to start!! I know that there are tools here but not sure which is which

Anyone else on Telstra cable that might know some cool tweaks to pass on?
Thanks all!!!

-Tuz

mccoffee · Post by **mccoffee** » Mon Dec 20, 2004 8:45 pm

http://forums.speedguide.net:8117/ click this link then when the page is loaded cut and paste everything below ip information in a new reply

also what windows version you have also advertised speed of the cable how fast the speed is up and down

Tuz76 · Post by **Tuz76** » Tue Dec 21, 2004 2:29 am

OK here goes.

I am on windows XP with SP2 running a cable connection that is (Downstream/Upstream) Uncapped/128
http://www.bigpond.com/internet-plans/b ... /Unlimited

Here are the results. Any suggestions / feedback guys?

SpeedGuide.net TCP/IP Analyzer

TCP properties for IP = 144.132.248.*** ()
Browser/OS = Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Notes: Read the Analyzer FAQ if the above is not your IP address.
TCP options string = 020405b40103030201010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default Receive Window (RWIN) = 256960
RWIN Scaling (RFC1323) = 2 bits (scale factor of 4)
Unscaled Receive Window = 64240

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of 8)
128480 (MSS x 44 * scale factor of 2)
64240 (MSS x 44)
bandwidth * delay product (Note this is not a speed test):

Your RcvWindow limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 54 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000

mccoffee · Post by **mccoffee** » Tue Dec 21, 2004 1:15 pm

Try thease in the sg optmizer below me to download and install

select - cable
check - custom settings
network adapter selection -
check modify all adapters
maxmtu -1500
TTL - 64
TCP Receive Window64240
MTU Discovery - yes
Black Hole Detect - no
Selective Acks - yes
Max Dup ACKs - 2
TCP 1323 nothing is checked

Other Settings tab:

Max Connections per Server - 10
Max Connections per 1.0 Server - 20
Lan Browsing Speedup - optimized

Then select "Apply Changes" and reboot to take effect.

1. Under your LAN connection - properties - general tab, uninstall all the protocols there that you do not need.

2. Open IE and select tools - internet options - connections -

LAN settings, make sure NOTHING there is checked.

3. ALWAYS connect your modem via ethernet (NIC) and make sure you have the latest drivers for your NIC from the manufacturer. Set your NIC duplex mode to 10mb half duplex for Cable, for DSL it is ISP dependent unless you are using a router, if so then set it to 100mb full duplex for both Cable & DSL (the instructions are in my Help & Tips link). If you are using a router make sure you have the latest firmware.

4. Clear your temporary internet files.

5. Power cycle your modem, unplug it for atleast 15 seconds.

6. Download and update then do a scan with SpyBot 1.2 http://beam.to/spybotsd & Ad Aware 6.0 http://www.lavasoftusa.com/support/download to remove any spyware then install and update SpywareBlaster to stay spyware FREE. YOU MUST USE BOTH AD AWARE & SPYBOT TO ENSURE YOU ARE SPYWARE FREE SINCE ONE FINDS WHAT THE OTHER MISSES.

7. Make sure you do the faster web page tweak in Read1st link.

8. If you have Zone Alarm as a firewall uninstall it then visit Zonelabs.com for further instructions on removing it's left over junk.

9. Install Outpost Firewall http://www.agnitum.com\ or Sygate Firewall http://www.sygate.com/ , both have FREE and Pro versions and are heads above ZA.

10. Scan for viruses with your antivirus app, if you do not have one get one IMMEDIATELY, AVG 6.0 http://www.grisoft.com/us/us_dwnl_free.php is an excellent FREE AV app.

11. Make sure you have ALL of the latest Windows Updates

Tuz76 · Post by **Tuz76** » Tue Dec 21, 2004 4:35 pm

Thanks did it. How can i check if the SGoptimzer worked?

Here are my new results

TCP options string = 020405b401010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default Receive Window (RWIN) = 64240
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 64240

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of 8)
256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)
bandwidth * delay product (Note this is not a speed test):

Your RcvWindow limits you to: 2569.6 kbps (321.2 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1027.84 kbps (128.48 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 54 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000

mccoffee · Post by **mccoffee** » Tue Dec 21, 2004 6:35 pm

your settings look good the analyzer shows you the settings you just changed

Tuz76 · Post by **Tuz76** » Wed Dec 22, 2004 1:03 am

OK Fantastic!

Couple of questions...

1. What exactly do these settings increase? - Browsing speed? Downloading speed, what exactly?

2. I noticed my new settings

Your RcvWindow limits you to: 2569.6 kbps (321.2 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1027.84 kbps (128.48 KBytes/s) @ 500ms

are lower than my old ones

Your RcvWindow limits you to: 10278.4 kbps (1284.8 KBytes/s) @ 200ms
Your RcvWindow limits you to: 4111.36 kbps (513.92 KBytes/s) @ 500ms

Is this right?

Is there anywhere that explains what each of these values do?

Cheers

mccoffee · Post by **mccoffee** » Wed Dec 22, 2004 3:45 am

yeah the improve download speed there is more tweaks that do web page loading that isn't a speed test take one network lan browsing

take a speedtest here http://www.iapselfhelp.com/

for the settings and defanitions look at this http://secinf.net/info/nt/2000ip/tcpipimp.html it's the same for 2000/xp

ITALIAN_GUY_20 · Post by **ITALIAN_GUY_20** » Fri Jan 07, 2005 8:35 am

If you have Telstra Cable 6000/128 plan then these cablenut settings are for you.

DefaultReceiveWindow = 9216000
DefaultSendWindow = 16384
DisableAddressSharing = 1
InitialLargeBufferCount = 100
InitialMediumBufferCount = 240
InitialSmallBufferCount = 320
LargeBufferSize = 819200
MaxFastTransmit = 64000
MediumBufferSize = 15040
PriorityBoost = 0
SmallBufferSize = 1280
TransmitWorker = 32
FastSendDatagramThreshold = 4096
EnableFastRouteLookup = 1
EnablePMTUDiscovery = 1
IgnorePushBitOnReceives = 0
GlobalMaxTcpWindowSize = 128480
MaxFreeTcbs = 8000
MaxHashTableSize = 16384
MaxNormLookupMemory = 5000000
SackOpts = 1
SynAttackProtect = 1
Tcp1323Opts = 1
TcpLogLevel = 1
TcpMaxDupAcks = 3
TcpMaxHalfOpen = 100
TcpMaxHalfOpenRetried = 80
TcpRecvSegmentSize = 1460
TcpSendSegmentSize = 1460
TcpTimedWaitDelay = 30
TcpUseRFC1122UrgentPointer = 0
TcpWindowSize = 128480
MaxConnectionsPer1_0Server = 20
MaxConnectionsPerServer = 10
DefaultTTL = 64
DisableUserTOSSetting = 0
TcpMaxDataRetransmissions = 6
DefaultTOSValue = 240

Just your local helper doing his job, happy tweaking