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    OpenVPN only one-way traffic

    Scheduled Pinned Locked Moved OpenVPN
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    • C
      criskolkman01
      last edited by

      Hello all,

      I have been searching a lot but I can't find an answer to this.
      At my home I have a router running dd-wrt and on my dedicated server I'm running a pfSense server.
      I have an OpenVPN connection between the 2 and is running fine.
      The strange thing is that I can reach all the servers from my home to the pfSense network, but I cannot reach my home network from the pfSense network.
      What I also find a bit strange is that in the dd-wrt openvpn status it gives me twice the same IP:

      State
      Client: CONNECTED SUCCESS
      Local Address: 10.0.8.2
      Remote Address: 10.0.8.2
      (I configured 10.0.8.0/24 to be the VPN network)

      ifconfig command on the pfSense machine:
      ovpns2: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500
      options=80000<LINKSTATE>
      inet6 fe80::250:56ff:fe08:2f46%ovpns2 prefixlen 64 scopeid 0x7
      inet 10.0.8.1 --> 10.0.8.2 netmask 0xffffff00
      nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
      groups: tun openvpn
      Opened by PID 38363

      ifconfig command on the dd-wrt router:
      tun1 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
      inet addr:10.0.8.2 P-t-P:10.0.8.2 Mask:255.255.255.0
      UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
      RX packets:279 errors:0 dropped:0 overruns:0 frame:0
      TX packets:330 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:100
      RX bytes:41754 (40.7 KiB) TX bytes:41086 (40.1 KiB)

      The firewall on the dd-wrt router:
      iptables -I INPUT 2 -p udp --dport 1194 -j ACCEPT
      iptables -I INPUT 3 -i tun1 -p icmp -j ACCEPT
      iptables -I FORWARD -i br0 -o tun1 -j ACCEPT
      iptables -I FORWARD -i tun1 -o br0 -j ACCEPT

      On the pfSense machine I allowed all traffic on the openvpn adapter.

      What could be the issue here?
      If you need more info please ask me.

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