DNS resolution of instances' private hostnames with OpenVPN on EC2

Question

The end goal of my setup is to for EC2 instance hostnames to be resolvable on the VPN clients, in addition to any private R53 entries.

I have a working OpenVPN server config (connections are successful), except that the clients have no internet access (because DNS server is unreachable).

I also cannot telnet to other instances on the VPC in the same public subnet using their private IP's.

Re DNS: I'm unsure of which DNS server to use. As you will see below I am pushing the default VPC DNS Server that's in the instance's resolve.conf file.

My VPC config is very basic:

VPC 172.33.0.0/16
1 Internet Gateway
1 Public Subnet
1 OpenVPN EC2 instance in Public Subnet
1 Test EC2 instance in Public Subnet (unreachable from client)
* ALLOW ACL Rules

I wanted to give the server a subnet within the VPC. I chose 172.33.30.0 and I hope to route from the tun on the server to other EC2 instances on the VPC.

My OpenVPN server.conf is

port 1194
proto udp
dev tun
ca /etc/openvpn/ca.crt
cert /etc/openvpn/server.crt
key /etc/openvpn/server.key
dh dh1024.pem
server 172.33.30.0 255.255.255.0
comp-lzo
user nobody
group nogroup
persist-key
persist-tun
verb 3

route 172.33.0.0. 255.255.0.0 172.33.30.1
push "route 172.33.0.0. 255.255.0.0 172.33.30.1"
push "dhcp-option DOMAIN us-west-2.compute.internal"
push "dhcp-option DNS 172.33.0.2"

As you can see I believe there's a problem in my server.conf's routing. Any suggestions?