On Mon, Aug 09, 2004 at 12:16:05PM +0100, =?iso-8859-1?B?TeBydGFpbm4gRPJtaG5hbGxhY2g= ?= wrote:
> The NIC is an Intel Pro/1000MT (dual port) which has HW checksum offloading > as a default as far as I can make out. If this is causing the problem have you any > idea how to turn it off? Before you want to change anything, make sure there actually IS a problem. That is, tcpdump might simply not show correct checksums (because packets go to bpf before the NIC sets the checksums in hardware), yet the packets might go out on the wire with correct checksums. You can't verify that on the same box at all. Run tcpdump on the _receiver_ (or any sniffer on that segment). Daniel
