[Novalug] determining where a port is blocked

[Richard Rognlie]

On Tue, Nov 13, 2007 at 10:25:18PM -0500, Richard Rognlie wrote:
> > Looks like only port 22 is allowed into the verizon network and to my
> > box.
> >
> > Is there a way to figure out when a packet is blocked for a port while
> > transversing the network?
> >
> > I don't want to run imaps on port 22 b/c I need/want shell access and
> > forwarding...
> 
> Traceroute?
> 
> /usr/sbin/traceroute [-n] -P tcp -p 143 targetip

And I do apologise.  -P tcp may not be supported by linux.

It is on my OS x 10.5 box though.

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