3 [ "$(uci get network.globals.ula_prefix)" != "auto" ] && exit 0
5 r1=$(dd if=/dev/urandom bs=1 count=1 |hexdump -e '1/1 "%02x"')
6 r2=$(dd if=/dev/urandom bs=2 count=1 |hexdump -e '2/1 "%02x"')
7 r3=$(dd if=/dev/urandom bs=2 count=1 |hexdump -e '2/1 "%02x"')
9 uci -q batch <<-EOF >/dev/null
10 set network.globals.ula_prefix=fd$r1:$r2:$r3::/48