Daniel J Blueman wrote: > On 25/05/06, Patrick McHardy <[EMAIL PROTECTED]> wrote: > >> Daniel, is there an easy way to reproduce the checksum failure? > > > In short, no. This was seen when packets may have been truncated by > large MTU (eg 9000) problems in the sky2 driver transmit path. > > There is a small chance that this could relate to transmitting with an > MTU of 9000 (possibly with receiving with an MTU of 1500 too)
Unfortunately I can't test this myself because my other NICs don't support MTUs > 1500. > On that interface, the only rules that were being exercised were: > > iptables -t filter -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT > iptables -t filter -A INPUT -p tcp -m tcp --dport 445 --syn -j ACCEPT # SMB > iptables -t filter -A INPUT -j DROP That shouldn't cause any packet modifications. Can you trigger the checksum failures without netfilter? - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
