Is it possible to tunnel ICMP over TCP?

Posted by Robert Atkins on Super User See other posts from Super User or by Robert Atkins
Published on 2011-01-12T08:41:10Z Indexed on 2011/01/12 8:55 UTC
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ping

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tunnel

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icmp

I don't want to tunnel TCP over ICMP (as ptunnel does), I want to go the other way around.

I'm in the situation where I have TCP (HTTP) connectivity to a machine but an internal firewall over which I have no control is swallowing pings. The monitoring software I'm using appears to determine connectivity by attempting to send a ping before it tries to just connect to the web service on the target machine. It's failing this ping test and giving up.

I believe if I could fool my monitoring software into thinking pings were getting through, it would then connect to the web service and be on its merry way. Anyone know how I can do this?

I have SSH and root access on the destination machine.

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