Windows-host with disabled TX-checksum offloading may send
packets with tcp-checksum=0x. Most likely it is caused
by by Windows algorithm for computing incremental checksum
- see RFC 1624.
RFC1624 (sec.5) states that 0x and 0x are equal, because
for example
0xCD7A + 0x3285 + 0x =
Dmitry Skorodumov sdmitry at parallels.com writes:
Windows-host with disabled TX-checksum offloading may send
packets with tcp-checksum=0x. Most likely it is caused
by by Windows algorithm for computing incremental checksum
- see RFC 1624.
Forgot to mention that packets with checksum