= OpenVPN can ping both peers, but I can't reach any of the other machines on the remote subnet. =

{{{
#!html
<div>
<li>Make sure that the firewall is not filtering the TUN/TAP interface.</li>
<li>Make sure you have <a href="/index.php/open-source/faq.html#ip-forward">IP forwarding</a> enabled on the server.</li>
<li>If you are using routing (not ethernet bridging), make sure the clients (or LAN gateway) have a route back to the server for the packets coming in over the tunnel. This can be done by:  
<ul>
<li>adding a route in your default gateway for the VPN network IP subnet pointing to the OpenVPN machine,</li>
<li>adding a route to every client, or</li>
<li>NATing all VPN traffic to the local address of the OpenVPN machine for network traffic which leaves the OpenVPN machine for the local net.</li>
</ul>
</li>
<li>If you are still stumped, use <strong>tcpdump</strong>, <strong>wireshark</strong>, or <strong>WinDump</strong> to determine where packets are being dropped.</li>
</div>
}}}

[wiki:FAQ Return to FAQ]