openvpn script to configure routes via different routing table

ovpn_route.sh

#!/bin/sh

# add to config
# --route-noexec
# --route-up script.sh
# --route-pre-down script.sh

echo "++++++++++++ $script_type ++++++++++++" | logger -t ovpn_route
#env  | tee -a /tmp/vpn
#echo "--------------------------------------"  | tee -a /tmp/vpn

case ${X509_0_CN} in
	vpn-us.xx.me)
	;;
	vpn-nl.xx.me)
	;;
	*)
	;;
esac

[ -z $RTABLE ] && RTABLE=vpntable
[ -z $redirect_gateway ] && redirect_gateway=1

case ${script_type} in
	route-up)
		echo "Installing route..." | logger -t ovpn_route
		# route_vpn_gateway=10.8.0.1
		# dev=tun0
		# ifconfig_broadcast=10.8.255.255
		# ifconfig_netmask=255.255.0.0
		# ifconfig_local=10.8.0.9
		# redirect_gateway=1
		#trusted_ip=185.107.94.249
		#route_net_gateway=192.168.178.1
		if [ $redirect_gateway -eq 1 ];then
			echo ip route add 0.0.0.0/1 via $route_vpn_gateway table $RTABLE | logger -t ovpn_route
			echo ip route add 128.0.0.0/1 via $route_vpn_gateway table $RTABLE | logger -t ovpn_route
			ip route add 0.0.0.0/1 via $route_vpn_gateway table $RTABLE
			ip route add 128.0.0.0/1 via $route_vpn_gateway table $RTABLE
		fi
	;;
	route-pre-down)
		echo "Removing routes..." | logger -t ovpn_route
		if [ $redirect_gateway -eq 1 ];then
			echo ip route del 0.0.0.0/1 via $route_vpn_gateway table $RTABLE | logger -t ovpn_route
			echo ip route del 128.0.0.0/1 via $route_vpn_gateway table $RTABLE | logger -t ovpn_route

			ip route del 0.0.0.0/1 via $route_vpn_gateway table $RTABLE
			ip route del 128.0.0.0/1 via $route_vpn_gateway table $RTABLE
		fi
	;;
	*)
		echo "Unsupported script_type: '$script_type'"
esac

forgot to mention to create the custom routing table:

cat /etc/iproute2/rt_tables
#
# reserved values
#
128	prelocal
255	local
254	main
253	default
0	unspec
#
# local
#
#1	inr.ruhep
10	vpntable