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For the ip, ip6, and inet families the following hooks apply:
- prerouting Packets that have just arrived and haven’t yet been routed or processed by other parts of nftables.
- input Incoming packets that have been received and sent through the prerouting hook.
- forward If the packet will be sent to a different device, it will be available through the forward hook.
- output Packets outbound from processes on the local system.
- postrouting Just prior to leaving the system, the postrouting hook makes the packet available for further processing.
The ARP address family uses only the input and output hooks.