I reported a similar issue (dropped UDP packets) in netfilter, that I suspect to be caused by the same commit Lasee mentions here: "netfilter: nf_nat: don't try nat source port reallocation for reverse dir clash"
https://bugzilla.netfilter.org/show_bug.cgi?id=1797 Issue is introduced in this release on my systems: https://launchpad.net/ubuntu/+source/linux-aws/6.8.0-1025.27 ** Bug watch added: bugzilla.netfilter.org/ #1797 http://bugzilla.netfilter.org/show_bug.cgi?id=1797 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2109889 Title: Netfilter DNAT regression with dropped packets in kernel 6.8.0-56 and above To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2109889/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
