firewall/sisr1/tp07/files_firewall/current_ruleset_v1.nft

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define netif = enp0s3
define dmzif = enp0s8
define lanif = enp0s9
table ip ipfilter {
chain routing {
type filter hook forward priority filter; policy accept;
icmp type echo-request iif { $netif, $dmzif } drop
icmp type { echo-reply, echo-request } accept
drop
}
chain system_in {
type filter hook input priority filter; policy accept;
icmp type echo-request iif { $netif, $dmzif } drop
}
}