RE: How do I find out what hop is not forwarding traffic on a specific port?

["David Gillett" <gillettdavid () fhda edu>]

  Most versions of traceroute use either ICMP or UDP, both of which are
connectionless.  The
methods used by traceroute don't depend on using a connection-oriented
protocol, and it should
be possible to adapt the mechanisms used by traceroute to this purpose --
odds are that someone
has already done so and it's just a case of finding their tool.

David Gillett

-----Original Message-----
From: Phunkodelic [mailto:phunkodelic () gmail com]
Sent: Thursday, November 05, 2009 10:01
To: security-basics () securityfocus com
Subject: How do I find out what hop is not forwarding traffic on a specific
port?

Looking for a way to find out who or what device is blocking traffic on a
specific port.  Sort of like a trace route tool where you could designate
the port to test with (UDP/TCP).  I realize that UDP may be hard to do since
it is a connectionsless protocol.

Anybody?  Thanks in advanced.

------------------------------------------------------------------------
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------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
------------------------------------------------------------------------