I have two Amazon EC2 instances setup in separate VPC's with openvpn configured. I am able to ping and telnet over port 22 from Server1VPC1 to Server2VPC2 however I cannot communicate on any other ports.
When I run a netstat -ntlp on VPC2, it only indicates
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1171/sshd
There's another line for SSHD over ipv6 and one for internal sendmail. When I run iptables -L, it is the default configuration ACCEPTING all in/out/forward.
There's no firewall configured as well. I've ran some TCPDUMPS and don't get a response over the host or port. Through Amazon's Security Group, I can telnet over ports that are open via the Elastic IP so I suspect it's something with the openvpn servers. 22 and ICMP are the only things working at the moment and unsure of how to allow ALL traffic through. I'm 99% sure there's no firewall settings
