On Fri, Jul 14, 2006 at 03:12:14PM +0100, Linux wrote: > If I run tcpdump on eth0.40 I only see the packets in one direction > but never see the return packets. In which direction do you see packets? > Has anyone seen this before or does anyone know what could be at > fault? Assuming you have verified the two links individually first I think only firewall rules could cause a problem. If you haven't verified both links then maybe you're seeing the oversize packets problem. This happens with some NIC drivers in the kernel that do not accept packets larger than the maximum specified by the ethernet network (and that is usually the default in the NIC) - with 4 VLAN bytes added by the switch fullsize ethernet packets will be oversize when arriving to the card. Which card and driver are you using? I have great experience from e100/e1000 cards, they do not have this issue. > This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom they Please don't send confidential email to public mailing lists. //Peter
