Subject: Re: hw ip4csum-tx bug on ex(4)? (Re: RTL8169 hw IP4CSUM_Tx workaround)
To: None <mouse@Rodents.Montreal.QC.CA>
From: Izumi Tsutsui <>
List: tech-kern
Date: 11/08/2006 23:32:44
mouse@Rodents.Montreal.QC.CA wrote:

> > (I'm not sure if there is any protocol other than ICMP which could
> > generate 21 or 22 byte IP fragment packets)
> A UDP packet ever so slightly larger than your MTU can do it, surely?

Hmm, is there any actual protocal which could create
"slightly (i.e. 1 or 2) larger than our MTU"?

If anyone could implement apps which will create
such short UDP fragment packet, should we add workaround
of the hardware ip4csum-tx bug on ex(4) after all?
Izumi Tsutsui