identify a router that cuts certain port

Posted by Sergiks on Server Fault See other posts from Server Fault or by Sergiks
Published on 2012-07-04T10:41:04Z Indexed on 2012/07/05 15:17 UTC
Read the original article Hit count: 154

Filed under:

routing

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firewall

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network-protocols

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traceroute

Is there a way to identify which particular router between me and some server blocks connections on certain port?

I am in a hotel in Thailand, where they have recently changed some settings in their equipment, and now I cannot reach any of my servers in Europe and USA by SSH / port 22. More traditional ports like 80 or 21 are open.

traceroute command shows each particular router in the middle. But is there a way to identify one that filters out port 22?

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