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#!/bin/sh
create_tun() {
name="$1"
if ! grep "$name" /proc/net/dev > /dev/null; then
ip tuntap add name $name mode tun
fi
}
add_addr() {
name="$1"
addr="$2"
ip addr del "$addr" dev "$name" 2> /dev/null
ip addr add "$addr" dev "$name"
}
create_tun "ogstun4"
create_tun "ogstun6"
create_tun "ogstun46"
add_addr "ogstun4" "176.16.16.1/20"
add_addr "ogstun6" "2001:780:44:2000:0:0:0:1/56"
add_addr "ogstun46" "176.16.32.1/20"
add_addr "ogstun46" "2001:780:44:2100:0:0:0:1/56"
ip link set ogstun4 up
ip link set ogstun6 up
ip link set ogstun46 up
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