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Update iptables_rules.json #1650

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Update iptables_rules.json #1650

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Update iptables_rules.json 
updated firewall rules for openvpn and wireguard to stop packet leakage if either tunnel abends.
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@frankozland
frankozland authored Aug 24, 2024
commit c6520d99e9dc1987fd2ceabd4fc1aad43f79efd9
24 changes: 17 additions & 7 deletions config/iptables_rules.json
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Original file line number Diff line number Diff line change
Expand Up @@ -117,11 +117,16 @@
{ "var": "ap-device", "type": "string", "replace": "$INTERFACE$" }
],
"rules": [
"-A INPUT -p udp -s $IPADDRESS$ -j ACCEPT",
"-A FORWARD -i tun+ -o $INTERFACE$ -m state --state RELATED,ESTABLISHED -j ACCEPT",
"-A FORWARD -i $INTERFACE$ -o tun+ -j ACCEPT",
"-t nat -A POSTROUTING -o tun+ -j MASQUERADE"
]
"-A INPUT -s $IPADDRESS$ -j ACCEPT",
"-A FORWARD -i tun+ -o wlan+ -j ACCEPT",
"-A FORWARD -i tun+ -o tun+ -j DROP",
"-A FORWARD -i wlan+ -o tun+ -j ACCEPT",
"-A FORWARD -i eth+ -o tun+ -j ACCEPT",
"-A FORWARD -i tun+ -o eth+ -j ACCEPT",
"-t nat -A POSTROUTING -o $INTERFACE$ -j MASQUERADE",
"-P FORWARD DROP"
]

},
{
"name": "wireguard",
Expand All @@ -134,8 +139,13 @@
],
"rules": [
"-A INPUT -p udp -s $IPADDRESS$ -j ACCEPT",
"-A FORWARD -i wg+ -j ACCEPT",
"-t nat -A POSTROUTING -o $INTERFACE$ -j MASQUERADE"
"-A FORWARD -i wg+ -o wlan+ -j ACCEPT",
"-A FORWARD -i wg+ -o wg+ -j DROP",
"-A FORWARD -i wlan+ -o wg+ -j ACCEPT",
"-A FORWARD -i eth+ -o wg+ -j ACCEPT",
"-A FORWARD -i wg+ -o eth+ -j ACCEPT",
"-t nat -A POSTROUTING -o $INTERFACE$ -j MASQUERADE",
"-P FORWARD DROP"
]
}
],
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