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How do you know if a Site to site VPN tunnel is established in OpenVPN? Apart from pinging the other side, is there a command or something that shows the status of the tunnel?

I am using centos on both ends. Very new to this! Thanks

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1 Answer

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  1. Check the logs file on the both side.
  2. sudo /sbin/ifconfig to make sure that tun/tap interface up and running.
  3. route -n to examize the routing table.
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So does that mean both client and server should have the tun interface when running ifconfig? Im attempting my first setup and having issues- and the client doesn't have a tun interface.. This is obviously not normal. – Lock Aug 10 '12 at 8:28
Yes. Show us the output when running openvpn from the command line. Increase the verbose level (verb option) if needed. – quanta Aug 10 '12 at 8:32

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