Hack modem + Isp to get lot speed : I'm going to try to explain you as best as I can to accomplish re-configuring your SB5100,SB4100 or SB3100 cable modem Theory of cable modem working All the cable modems when itboots up it will search for an"Image file" where in all configuration like your upload speed limit and download speed limit is defined. This "Image file" is stored in ISP`s TFTP server. Modem will be pre-configured with the ISP`s TFTP server IP address and the Image file name to be downloaded. When the modem boots up itquery TFTP server and download Image file from [TFTP] [server] according to this this our speed limits will be set. Our Mission Get this Image file from ISP`sTFTP server, reconfigure it according to our need and force our modem to download this file from our Computer rather than downloading it from our ISP`s TFTP server. 1). Get cable [modems] MAC-Addreaa You can either look at the back of the modem to get this MAC Address or you canlogon to your Cable modem with your Web Browser 192.168.100.1/.This is internal HTML pages stored within your DOCsis cable modem (SB5100, SB4100 andSB3100) that gives you even more vital information on configuration. Unless it isturned off by your ISP. This feature might be totally turned off by your ISP. 2). Get your [ISP] TFTP server IP address a) There's a program called QUERY.EXE from Weird Solutions which is a BOOTP packet request program thatwill tell you everything you need to know, without all these extra steps. It will display the Image Filename, TFTP server address, which is really all youneed to get started. To use this BOOTP QUERY tool, you need the MACaddress of your cable modem or Beginners can use DOCSIS Diagnosis utility Code:: docsis Using the above tools you will get the information of your ISP`s TFTP server IP and the name of your"Image file" stored in that TFTP server All your vital information is stored inthis file, One of which is the MaxRateDown 2621440; MaxRateUp393216;. (This was my ISP settings. Which you can see is similar to what speed I was getting. 40KB/s up and 250 KB/s down) Among these, the one we need are: Configuration [TFTP] [Server] = 194.*.*..90 (replace this with yours throughout in the doc) Configuration filename = isrr.bin (replace this with yours throughout in the doc) And IP fragments created = 0 IP address.10.$$$.$$$.$$$ = 10.$$$.$$$.$$$ IP address.192.168.100.1= 192.168.100.1(the IP address of the cable modem,(replace this with yours throughout in the doc) IP-to-If-index.10.$$$.$$$.$$$ = 2 Suggestion: You can do this step by sniffing the modem i.e."192.168.100.1" when modem boots up. I never tried this method. Try your luck. 3) Download Image file from ISP`s TFTP server. For doing this got to your command prompt and use below commands with out quotes and bracket. "C:\tftp -i GET " Okay now you got Image file from your ISP`s TFTP server. 4). Decrypt the Image file which you downloaded from ISP`s TFTP server For all you can use the DOCsis tool Code:: docsis to decode. 5). Modify the Image file Change your computer's TCPconfiguration same as ISP`s TFTP server (i.e. IP addresssame as ISP`s TFTP server) Go to my network place and right click ->properties Select your LAN Card right click ->property->Internet Protocol (TCP-IP) double click on it and change it to as following values Configure your TPC's TCP settings as below IP: 194.*.*.90 (replace with the ISP's TFTP server) Netmask: 255.255.255.0 Gateway: 192.168.100.1(replace with your cable modem's IP address) Note: Gateway should be 192.168.100.1then only your modem can communicate with computer. 6). Encrypt the modified Image file (Save it using Docsis) 7). Host TFTP server in your computer Download TFTP Server software and host TFTP server in your computer You can download TFTP server from:Code: Code:: http://www.megaupload.com/?d=6KG6XIOO 8). Put Image file in the basedirectory of your TFTP Start TFTPD32 server. Go toSettings and set the Security to None. Increase the timeout to 20secs and the Max Retransmit to 6. Choose to translate UNIX filenames. Make sure it's base directory point to where the isrr.bin is (i.e. theimage file which you modified). If you need to replicate a directory pathname alongwith the image file, then make a directory from root that correspondsto the image filepathname. Restart your modem, and ASSOON asthe SEND light goessolid, you should see a receive on your TFTP server i.e. your PC 9). [Restart] your [modem] 10). Changer your PC's IP back as given by ISP 11). OOPS Done. Start surfing with your new speed. - webtrix Ad: get 20% discount on hosting by Hostgator, go to http://secure.hostgator.com/~affiliat/cgi-bin/affiliates/clickthru.cgi?id=mywebtrix