RE: Modem connection
From: Tim Donahue (TDonahue_at_haynesconstruction.com)
Date: 08/11/03
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To: "'ice4ice@excite.com'" <ice4ice@excite.com>, security-basics@securityfocus.com Date: Mon, 11 Aug 2003 11:50:40 -0400
Inline.
> -----Original Message-----
> From: none [mailto:ice4ice@excite.com]
> Sent: Saturday, August 09, 2003 12:43 AM
> To: security-basics@securityfocus.com
> Subject: Modem connection
>
>
>
>
>
> hi, i'm a simple man, i can't affort anything faster than 56k
> :> I'm running XP, with Forton Firewall; the problem i
> occured that packets can be sent to me with +++ATHO, which
> will nicelly disconnect me. Uner linux i found that that
> command can be disabled via querying the modem. Some of the
> ICMP senders will do it to 135 port; disabling the whole
> protocol won't do it. We tried it.
> I don't think that the firewall is actually catching the
> packets, before they reach modem :> ,so i'm trapped, trying
In order for the firewall to scan the packets, the computer has to accept
the packet to have it scanned by the firewall software. Sounds like it
might be a driver bug, but that is just a guess.
> different software won't help, eg BlackIce didn't help. My
> mate tried from freeBSD, by going on higher port (cant
> remember) and disconnecting me, but ip ban solved that. Q. is
> there an answer to that? i can't setup a hardware firewall,
> and i need windows to run more often than linux (for the time being.)
> Can someone send a link for more info on ICMP?
Google. The first 3 results from a query of "ICMP" look like they are a good
place to start. Especially the RFC defining ICMP.
> Thanks, and sorry for my poor english.
>
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Tim Donahue
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