nftables - 0.9.8-3.1+deb11u2 main

This software provides an in-kernel packet classification framework that is
based on a network-specific Virtual Machine (VM) and the nft userspace
command line tool. The nftables framework reuses the existing Netfilter
subsystems such as the existing hook infrastructure, the connection tracking
system, NAT, userspace queueing and logging subsystem.
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nftables replaces the old popular iptables, ip6tables, arptables and ebtables.
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Netfilter software and nftables in particular are used in applications such
as Internet connection sharing, firewalls, IP accounting, transparent
proxying, advanced routing and traffic control.
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A Linux kernel >= 3.13 is required. However, >= 4.14 is recommended.