Subject: Re: UDP checksum trouble in -current
To: None <>
From: YAMAMOTO Takashi <>
List: tech-net
Date: 01/21/2005 10:49:20

> > > i think you also need zero ui->ui_sum in the else {}, otherwise you could
> > > just have garbage.
> > 
> > for what?
> > in that case, the ui_sum should never used by anyone, afaik.
> you still want it to "hit the wire" as zero don't you,


> otherwise the receive
> side (including things like tcpdump) thinks you're doing checksums.

can you explain why it's a problem?
"receive side" should be ourselves.  it should know about checksum omission.