Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: TCP/UDP checksum offloading


10 Feb 2010   #1

windows xp
 
 
TCP/UDP checksum offloading

hello,

i have a voip application. i tested it on Windows 7.

when i see the RTP packets with Wireshark, i see that every UDP packet originating from the Windows 7 machine has UDP checksum error, and Wireshark suggests that it might be caused of 'UDP checksum offload'.

i received a bad/broken voice quality, i've tested in xp and it runs well.

what i want to ask are.

is TCP/UDP checksum offloading is enabled by default in Windows 7?
is there any other way to enable/disable this feature than setting it in the Registry?

or is this has something to do with the network interface driver? since i read that TCP/UDP checksum offloading let the network interface card to do the TCP/UDP checksum calculation, so that the packets will have a correct TCP/UDP checksum when they're sent on the wire. if that's right, i think that i shouldn't experience a bad/broken voice quality on the other side.


Thank you.

My System SpecsSystem Spec
.

Reply

 TCP/UDP checksum offloading




Thread Tools



Similar help and support threads for2: TCP/UDP checksum offloading
Thread Forum
CMOS Bad Checksum General Discussion
CHECKSUM ERROR General Discussion
Incorrect IP Packet Checksum System Security
BOIS ROM checksum error Hardware & Devices
Checksum problem Windows 7 Installation & Setup
TCP/UDP checksum offloading Network & Sharing
Checksum Error Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 09:52 AM.
Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App
  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33