How to tell if port number is blocked by firewall

[redsss]

How can I test if a certain port number on my home server is reachable from my work pc?

Say for example I want to see if port 7070 is reachable. I can try to telnet on port 7070 from work, but if I don't have a service running on that port, I might get a "connect failed" message, which doesnt seem to tell me whether the port was reached and found no service, or whether my company's firewall blocked that port.

And "ping" can't be used to test a particular port, right?

 

[ChrisAC]

What firewall do you have at home? Can you not log connections to see what has been blocked and what has been allowed?

Chris.

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Chris A.C, CCNA, CCSA
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[redsss]

I have a cable modem and belkin 4 port router.

I just want to check to see which ports are blocked in my company firewall (outgoing or incoming).