Hello! In our experiment, we are trying to mark IP packets at a source host. Some of these packets have a 28-byte "IP Options" field, hence a 48-byte IP header. We observed (using ethereal) that the tc script at the source appropriately marks the packets that DO NOT have an "IP Options" field (i.e., regular 20 byte header), however, all the packets with the "IP Options" field do not get marked! The DSCP remains 0x00. We are using u32 filter to classify the packets, dsmark for marking, and HTB to schedule the packets. Is there any such known problem for packets with "IP Options" field?? Any help in this matter is much appreciated. Thank you regards Kaustubh
