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#!/bin/sh
attempts=${IF_LL_ATTEMPTS:-60}
delay=${IF_LL_INTERVAL:-0.1}
for attempt in $(seq 1 $attempts); do
lladdress=$(ip -6 -o a s dev "$IFACE" scope link -tentative)
if [ -n "$lladdress" ]; then
attempt=0
break
fi
sleep $delay
done
if [ $attempt -eq $attempts ]; then
echo "Could not get a link-local address"
exit 1
fi