97c5a05efa
nouveau fichier : siotp/sisr1/TP7/scriptsnft/fw_part1.nft nouveau fichier : siotp/sisr1/TP7/scriptsnft/fw_part2.nft nouveau fichier : siotp/sisr1/TP7/scriptsnft/fw_part3.nft nouveau fichier : siotp/sisr1/TP7/scriptsnft/refresh_firewall.sh
42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
define netif = enp0s3
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define dmzif = enp0s8
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define lanif = enp0s9
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define netip = 192.168.0.140
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define dmzip = 172.16.0.254
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define lanip = 10.0.0.254
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table ip ipfilter{
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chain prerouting {
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type filter hook prerouting priority filter; policy drop;
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icmp type echo-request iif $lanif ip daddr 172.16.0.1-172.16.0.254 accept
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icmp type echo-request iif $lanif ip daddr $lanip accept
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icmp type echo-reply accept
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tcp dport 22 accept
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}
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chain system_in {
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type filter hook input priority filter; policy drop;
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icmp type echo-request iif $lanif accept
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icmp type echo-reply accept
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tcp dport 22 accept
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}
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chain routing {
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type filter hook forward priority filter; policy drop;
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icmp type echo-request iif $lanif oif $dmzif accept
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icmp type echo-reply iif $dmzif oif $lanif accept
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}
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chain system_out {
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type filter hook output priority filter; policy drop;
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icmp type echo-request accept
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icmp type echo-reply oif $lanif accept
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tcp sport 22 accept
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}
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chain postrouting {
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type filter hook postrouting priority filter; policy drop;
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icmp type echo-request ip saddr {$lanip , $dmzip , $netip } accept
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icmp type echo-request iif $lanif oif $dmzif accept
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icmp type echo-reply iif $dmzif oif $lanif accept
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icmp type echo-reply ip saddr $lanip oif $lanif accept
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tcp sport 22 accept
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}
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}
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