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#!/bin/bash
set -e
EXPECTED="table ip nat {
map ipportmap {
type ipv4_addr : interval ipv4_addr . inet_service
flags interval
elements = { 192.168.1.2 : 10.141.10.1-10.141.10.3 . 8888-8999 }
}
chain prerouting {
type nat hook prerouting priority dstnat; policy accept;
ip protocol tcp dnat ip to ip saddr map @ipportmap
}
}"
$NFT -f - <<< $EXPECTED
$NFT add element ip nat ipportmap { 192.168.2.0/24 : 10.141.11.5-10.141.11.20 . 8888-8999 }
EXPECTED="table ip nat {
map ipportmap2 {
type ipv4_addr . ipv4_addr : interval ipv4_addr . inet_service
flags interval
elements = { 192.168.1.2 . 192.168.2.2 : 127.0.0.1/8 . 42 - 43 }
}
chain prerouting {
type nat hook prerouting priority dstnat; policy accept;
ip protocol tcp dnat ip to ip saddr . ip daddr map @ipportmap2
}
}"
$NFT -f - <<< $EXPECTED
EXPECTED="table ip nat {
map fwdtoip_th {
type ipv4_addr . inet_service : interval ipv4_addr . inet_service
flags interval
elements = { 1.2.3.4 . 10000-20000 : 192.168.3.4 . 30000-40000 }
}
}"
$NFT -f - <<< $EXPECTED
$NFT add rule ip nat prerouting meta l4proto { tcp, udp } dnat to ip daddr . th dport map @fwdtoip_th
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