I know that with the new netfilter code in 2.4, fragments are automatically reassembled if you have connection tracking on. The thing that I haven't figured out is how to turn connection tracking on. Do I just load the ip_conntrack module. I don't need to do anything but reassemble the fragments. Basically, what I need to do is unfragment NFS traffic from a non-jumbo frame enabled gigabit ethernet to a jumbo frame enabled gigabit. -ben