trace port

[Roger Keays]

Anybody know how I could figure out where in the network a port is being
filtered? Kind of like traceroute, but for ports?

I can't connect to my mail servers on port 25... I figure it is an ISP trying
combat spam (?)

Cheers,

Roger
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[Barry Margolin]

In article <40235966$0$28870$afc38c87@news.optusnet.com.au> ,
Roger Keays <r.keays@ninthave.net> wrote:

> Anybody know how I could figure out where in the network a port is being
> filtered? Kind of like traceroute, but for ports?

Search for tcp_traceroute.

--
Barry Margolin, [email]barmar@alum.mit.edu[/email]
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***