[PATCH v2] fff-gateway: Add firewall rules to ensure nothing is forwarded onto WAN

Fabian Bläse fabian at blaese.de
Di Sep 10 22:09:01 CEST 2019


Signed-off-by: Fabian Bläse <fabian at blaese.de>
---
Changes in v2:
- Fix redundant --reject-with parameter
---
 .../fff/fff-gateway/files/usr/lib/firewall.d/10-no-forward-wan | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 src/packages/fff/fff-gateway/files/usr/lib/firewall.d/10-no-forward-wan

diff --git a/src/packages/fff/fff-gateway/files/usr/lib/firewall.d/10-no-forward-wan b/src/packages/fff/fff-gateway/files/usr/lib/firewall.d/10-no-forward-wan
new file mode 100644
index 0000000..f989d6b
--- /dev/null
+++ b/src/packages/fff/fff-gateway/files/usr/lib/firewall.d/10-no-forward-wan
@@ -0,0 +1,3 @@
+# Ensure nothing is forwarded onto WAN interface
+iptables -A FORWARD -o $IF_WAN -j REJECT --reject-with icmp-net-unreachable
+ip6tables -A FORWARD -o $IF_WAN -j REJECT --reject-with no-route
-- 
2.23.0



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