According to libnetfilter_queue home page, libnetfilter_queue is a
userspace library that allows one to retrieve and manipulate the packets
that have been queued by kernel packet filter. It is supposed to
replace the old ip_queue/libipq mechanism.
0. Dependencies
libnetfilter_queue requires a kernel that includes nfnetlink_queue subsystem. If you Linux kernel is 2.6.14 or later, the subsystem is normally enabled.
0. Dependencies
libnetfilter_queue requires a kernel that includes nfnetlink_queue subsystem. If you Linux kernel is 2.6.14 or later, the subsystem is normally enabled.
You can confirm this by looking into your kernel configuration file.
The configuration file is normally located at your system /boot/
directory, with the name like config-. Open
the file, and look for CONFIG_NETFILTER_NETLINK_QUEUE and
CONFIG_NETFILTER_ADVANCED. Make sure the two lines are not commented
out.