This type of information is not within the scope of ubuntu-docs which focuses on user desktop help. I'll move the bug to iptables in case the maintainers think that this type of information is worthy of inclusion in the man page.
** Package changed: ubuntu-docs (Ubuntu) => iptables (Ubuntu) -- No information exists on iptables prerouting https://bugs.launchpad.net/bugs/624743 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