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Date:      Fri, 26 Dec 2003 12:13:28 -0300 (ART)
From:      Fernando Gleiser <fgleiser@cactus.fi.uba.ar>
To:        Frank DeChellis <frankd@iaw.on.ca>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Can't traceroute to my box
Message-ID:  <20031226121042.A72186-100000@cactus.fi.uba.ar>
In-Reply-To: <NEBBLHKFIKHLKPNHEDBOMENJAOAB.frankd@iaw.on.ca>

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On Fri, 26 Dec 2003, Frank DeChellis wrote:

> Hi.
>
> I am new to FreeBSD.  I have been using NetBSD for about 9 years.  I have
> FreeBSD v. 4.8 Release #1 running.  Everything is smooth expect for one
> thing.
>
> I can't traceroute to the box.  I can do a traceroute -I to it, but not a
> regular traceroute, which tells me something about UDP, but I don't know
> where to look.

Are you using a firewall of some kind? The last hop of a traceroute
ends with a 'Port unreachable" ICMP. If the firewall is blocking UDP,
you get no response.

>
> IS there a file somewhere that is closing certain UDP ports that respond to
> traceroute?

No that I am aware off, unless you're using a firewall.


		Fer



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