#!/bin/bash
read -p "Ввеедите интерфейс(v200): " In
read -p "Введите начало диапазона(192.168.4.2): " S
read -p "Введите конец диапазона(192.168.4.6): " K
read -p "Введите подсеть(192.168.4.0): " Q
read -p "Введите маску(29): " E
read -p "Введите dns сервер(192.168.3.2): " R
read -p "Введите шлюз(192.168.4.1): " T
read -p "Введите ip-адрес BR-SRV: " B
if (( $E == 2 )); then
	E=192.0.0.0
elif (( $E == 3 )); then
	E=224.0.0.0
elif (( $E == 4 )); then
	E=240.0.0.0
elif (( $E == 5 )); then
	E=248.0.0.0
elif (( $E == 6 )); then
	E=252.0.0.0
elif (( $E == 7 )); then
	E=254.0.0.0
elif (( $E == 8 )); then
	E=255.0.0.0
elif (( $E == 9 )); then
	E=255.128.0.0
elif (( $E == 10 )); then
	E=255.192.0.0
elif (( $E == 11 )); then
	E=255.224.0.0
elif (( $E == 12 )); then
	E=255.240.0.0
elif (( $E == 13 )); then
	E=255.248.0.0
elif (( $E == 14 )); then
	E=255.252.0.0
elif (( $E == 15 )); then
	E=255.254.0.0
elif (( $E == 16 )); then
	E=255.255.0.0
elif (( $E == 17 )); then
	E=255.255.128.0
elif (( $E == 18 )); then
	E=255.255.192.0
elif (( $E == 19 )); then
	E=255.255.224.0
elif (( $E == 20 )); then
	E=252.255.240.0
elif (( $E == 21 )); then
	E=255.255.248.0
elif (( $E == 22 )); then
	E=255.255.252.0
elif (( $E == 23 )); then
	E=255.255.254.0
elif (( $E == 24 )); then
	E=224.255.255.0
elif (( $E == 25 )); then
	E=255.255.255.128
elif (( $E == 26 )); then
	E=255.255.255.192
elif (( $E == 27 )); then
	E=255.255.255.224
elif (( $E == 28 )); then
	E=255.255.255.240
elif (( $E == 29 )); then
	E=255.255.255.248
elif (( $E == 30 )); then
	E=255.255.255.252
elif (( $E == 31 )); then
	E=255.255.255.254
elif (( $E == 32 )); then
	E=255.255.255.255
fi
cat > /etc/dhcp/dhcpd.conf << EOF
default-lease-time 600;
max-lease-time 7200;
authoritative;

subnet $Q netmask $E {
	range $S $K;
	option domain-name-servers $R, $B;
	option domain-name "au-team.irpo";
	option subnet-mask $E;
	option routers $T;
}


host hq-cli {
		hardware ethernet
08:00:27:c7:82:fa;
		fixed-address
$S;
}
EOF
chmod 600 /etc/dhcp/dhcpd.conf

cat > /etc/sysconfig/dhcpd << EOF
DHCPDARGS="$In"
EOF

echo "_________________Перезагрузка и старт dncpd________________________"
systemctl restart dhcpd
systemctl enable dhcpd --now