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Fix loop that can run infinitely in some cases #67

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Fix loop that can run infinitely in some cases #67

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7 changes: 6 additions & 1 deletion snat.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -2,10 +2,15 @@
set -x

# wait for eth1
while ! ip link show dev eth1; do
end_time=$((SECONDS + 180))
while [ $SECONDS -lt $end_time ] && ! ip link show dev eth1; do
sleep 1
done

if ! ip link show dev eth1; then
exit 1
fi

# enable IP forwarding and NAT
sysctl -q -w net.ipv4.ip_forward=1
sysctl -q -w net.ipv4.conf.eth1.send_redirects=0
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