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#!/system/bin/sh
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MODDIR=${0%/*}
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# Failsafe: Incase these iptables entries were already present, remove them once.
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for INTERFACE in "v4-rmnet_data+" "wlan1" "bt-pan"; do
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iptables -t mangle -D PREROUTING -i $INTERFACE -j TTL --ttl-inc 1
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iptables -t mangle -D POSTROUTING -o $INTERFACE -j TTL --ttl-inc 1
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ip6tables -t mangle -D PREROUTING ! -p icmpv6 -i $INTERFACE -j HL --hl-inc 1
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ip6tables -t mangle -D POSTROUTING ! -p icmpv6 -o $INTERFACE -j HL --hl-inc 1
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done
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# Bypass TTL/HL detections for only Tether device (server) -> Tethered To devices (client).
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# WARNING: Routers (as the client) require their own TTL/HL increment script.
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for INTERFACE in "v4-rmnet_data+" "wlan1" "bt-pan"; do
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iptables -t mangle -I PREROUTING -i $INTERFACE -j TTL --ttl-inc 1
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iptables -t mangle -I POSTROUTING -o $INTERFACE -j TTL --ttl-inc 1
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ip6tables -t mangle -I PREROUTING ! -p icmpv6 -i $INTERFACE -j HL --hl-inc 1
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ip6tables -t mangle -I POSTROUTING ! -p icmpv6 -o $INTERFACE -j HL --hl-inc 1
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done
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