Re: Find a firewall in a network path

[Lorenzo Capanna <lorenzo.capanna () gmail com>]

Ansgar -59cobalt- Wiechers wrote:
> On 2008-01-20 Lorenzo Capanna wrote:
>   
> > The port 21 is filtered from network A to host B.
> > Port 21 is not generally filtered from network A ( I'm able to connect
> > to hosts different than B ).
> > Port 21 is not generally filtered in the host B. ( From networks
> > different than A I'm able to connect to B)
> > Port 80 is not filtered from network A to host B.
> >
> > It seems that a firewall is blocking port 21 connection from network A
> > to host B.
> > The admins of the network A gateway and of the B host deny the
> > firewall rule presence.
> >
> > Is there a way to identify the firewall in the network path from A to B?
> >     
>
> tcptraceroute might do the trick.
>
> Regards
> Ansgar Wiechers
>   
Thanks. I'll try it as soon as possible.

Lorenzo Capanna