I dont have a url for such an app (assuming one has been written) but you should be able to run a traceroute using the tcp ports and see where it stops?
Steve On Mon, 8 Sep 2003, William Devine, II wrote: > > Can anyone from these three carriers tell me if you're doing port blocking > on the Windows file/print ports (135-139, 445 & 593) ? > A client of ours (in the US), against our recommendation, still wants to > connect to their Exchange server in the UK without a VPN. We're not > blocking their IP#'s from anything but somewhere in between it's getting > blocked. We use C&W directly and Verio/Level3 through a peer. > > Thanks! > william > > >
