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#!/bin/bash -e
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address=$(ip address show dev eth0 scope global | grep -F 'inet ' | perl -pe 's#.*inet (.*?)/.*#$1#')
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gateway=$(ip route list dev eth0 default | perl -pe 's#.*via ##')
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# $interface differs from the live system because of different naming schemes
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# see https://wiki.debian.org/NetworkInterfaceNames for more details
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interface='enp35s0'
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echo "[Match]
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Name=$interface
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[Network]
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Gateway=$gateway
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[Address]
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Address=${address}/32
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Peer=${gateway}/32" > "/etc/systemd/network/${interface}.network"
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