Sorry for the long time... I made some tests with Ubuntu 8.10: kernel 2.6.27-7-generic #1 SMP Tue November 4 19:33:20 2008 UTC i686
The problem still persists, but I don't think it is related to the patch attached early. For every packet marked as invalid, the netfilter log reports: ACK is over the upper bound (ACKed data not seen yet) I can't understand if it is an error of netfilter or my network's problem. I'll investigate. Thank you -- netfilter: In TCP connection tracking, some valid packets are marked as INVALID https://bugs.launchpad.net/bugs/264269 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs