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jeansf/fix-nat.sh

Last active September 5, 2020 17:31
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fix-nat.sh
PIP=111.111.111.111
DIP=222.222.222.222
iptables -t nat -A OUTPUT -j DNAT -d $PIP --to-destination $DIP
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fix-port.sh
CID=bbb
PS=16384
PE=32768
CIP=$(docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $CID)
echo "Ports: $PS:$PE/udp redirect to IP Container: $CIP"
iptables -A DOCKER -t nat -p udp -m udp ! -i docker0 --dport $PS:$PE -j DNAT --to-destination $CIP:$PS-$PE
iptables -A DOCKER -p udp -m udp -d $CIP/32 ! -i docker0 -o docker0 --dport $PS:$PE -j ACCEPT
iptables -A POSTROUTING -t nat -p udp -m udp -s $CIP/32 -d $CIP/32 --dport $PS:$PE -j MASQUERADE
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