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#!/bin/bash
to_local_admin_mac() {
# Set sencond bit of first byte
modified_byte=$((16#${1:0:2} | 0x02))
modified_mac="$(printf "%02X" "$modified_byte")${1:2}"
echo "$modified_mac"
}
INTF=$1
networkctl down "$INTF"
# Set interface to local Admin MAC
local_mac=$(to_local_admin_mac "$(cat /sys/class/net/"$INTF"/address)")
ip link set dev "$INTF" address "$local_mac"
networkctl up "$INTF"
# wait getting address from NC-SI
systemctl restart network-wait-ipv6-ll@"$INTF".service
networkctl reconfigure "$INTF"
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