Thread: Hack cable modem...boost speed from 100mbps to 10gigs..working..checked

Run this...
Windows Registry Editor Version 5.00

Code:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Tcpip\Parameters]
"GlobalMaxTcpWindowSize"=dword:0000ffff

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Tcpip\Parameters]
"GlobalMaxTcpWindowSize"=dword:00007fff

Tell Me Brother How To Do This In Detail Stepwise .

How To Run & Where To Put This Code???????

Originally Posted by masti123

Tell Me Brother How To Do This In Detail Stepwise .

How To Run & Where To Put This Code???????

Start ---> Run -->Type cmd -- > Type regedit at command prompt --- > Registry editor will open.


Then follow the given instruction.

Originally Posted by sid003

Start ---> Run -->Type cmd -- > Type regedit at command prompt --- > Registry editor will open.


Then follow the given instruction.

I HAVE GONE AT [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Tcpip\Parameters]
THEN I HAVE TO ADD NEW DWARD - NAME (GlobalMaxTcpWindowSize=dword:0000ffff) AND WHAT IS THE VALUE PRESENTLY ITS SHOWS ZERO.

PL TELL ME THE ABOVE IS CORRECT ??

ONE MORE THING I HAVE ALREADY NAME OF "GlobalMaxTcpWindowSize" AND VALUE IS - 262592.

PL GUIDE ME IN THIS AFTER [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Tcpip\Parameters]
THEN WHAT TO DO?

plz tell me in details

what you have to do is put the new dword key name as GlobalMaxTcpWindowSize and put its value as 0000ffff. One thing i do not understand in this tip is why you need two separate keys with same name and different values. Anyone trying this out must first take a backup of registry.

These settings allow you to boost the speed of your broadband Internet connection when using a Cable Modem or DSL Router with Windows 2000 and Windows XP.

Open your registry and find the key below.

Create the following DWORD values, as most of these values will not already exist you will need to create them by clicking on 'Edit -> New -> DWORD Value' and then set the value as shown below.

DefaultTTL = "80" hex (or 128 decimal)
Specifies the default time to live (TTL) for TCP/IP packets. The default is 32.

EnablePMTUBHDetect = "0"
Specifies whether the stack will attempt to detect Maximum Transmission Unit (MTU) routers that do not send back ICMP fragmentation-needed messages. The default is 0.

EnablePMTUDiscovery = "1"
Specifies whether the TCP/IP stack will attempt to perform path MTU discovery as specified in RFC 1191. The default is 1.

GlobalMaxTcpWindowSize = "7FFF" hex (or 32767 decimal)
Specifies the system maximum receive window size advertised by the TCP/IP stack.

TcpMaxDupAcks = "2"
Determines the number of duplicate ACKs that must be received for the same sequence number of sent data before "fast retransmit" is triggered.

SackOpts = "1"
Enables support for selective acknowledgements as documented by Request for Comment (RFC) 2018. Default is 0.

Tcp1323Opts = "1"
Controls RFC 1323 time stamps and window scaling options. Possible values are: "0" = disable RFC 1323 options, "1" = window scale enabled only, "2" = time stamps enabled only and "3" = both options enabled.

TcpWindowSize = "7FFF" hex (or 32767 decimal)
Specifies the receive window size advertised by the TCP/IP stack. If you have a latent network you can try increasing the value to 93440, 186880, or 372300.

Exit your registry and restart Windows for the changes to take effect.

If you don’t want to edit the registry, here's a little TCP utility that is ideal...

Code:

http://www.broadbandreports.com/front/doctorping.zip

hmm.... I am not sure about this... I will give it a shot..

thanks man!!

how to do in vista dude..please even tell that..