Seems to be failing before the actual timeout as the message comes back quickly. When I curl 172.20.220.89/index.html?em34567 from nagios it comes right back.
let this run just long enough to run the plugin again on another terminal and then use CTRL+C to stop it. The tcpudmp can be reviewed with wireshark. Feel free to PM us a copy too.
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The dump shows a connection, the request sent, and then resent again because first request wasn't ACKnowledged. 15 seconds later the plugin terminates the connection. There is also a second attempt by the plugin to establish a connection but it is terminated right away and doesn't get past the initial SYN to establish a tcp connection.
The first connection is definitely showing a timeout. The second is showing a failure to establish a tcp connection. In either case you'll want to look beyond the XI machine to the devices between XI and the destination or the destination itself.
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