#!/bin/bash set -e RULESET=" table inet t { set s1 { type ipv4_addr flags interval elements = { 192.0.0.0/2, 10.0.0.0/8 } } set s2 { type ipv6_addr flags interval elements = { ff00::/8, fe80::/10 } } chain c { ip saddr @s1 accept ip6 daddr @s2 accept } }" $NFT -f - <<< "$RULESET"