Revision history [back]

Just checked some of my traces.

So I found the next:

• TCP checksums are always nonzero;
• UDP checksums are always nonzero too;
• IP checksums sometimes are zeroed, sometimes are not.

It would be nice to hear where these checksums are coming from. Probably it depends on TCP stack implementation.

As for high volume I don't see any problem with that, there might be tons of such packets (basically all of the sent packets containing TCP).

Just checked some of my traces.

So I found the next:

• All TCP checksums I've seen are always nonzero;
• All UDP checksums I've seen are always nonzero too;
• IP checksums sometimes are zeroed, sometimes are not.

It would be nice to hear where these checksums are coming from. Probably it depends on TCP stack implementation.

As for high volume I don't see any problem with that, there might be tons of such packets (basically all of the sent packets containing TCP). TCP).

Just checked some of my traces.

So I found the next:next. Among the packets with wrong checksum:

• All TCP checksums I've seen are nonzero;
• All UDP checksums I've seen are nonzero too;
• IP checksums sometimes are zeroed, sometimes are not.

It would be nice to hear where these checksums fields are coming from. Probably it depends on TCP stack implementation.

As for high volume I don't see any problem with that, there might be tons of such packets (basically all of the sent packets containing TCP).