[aclug-L] Re: Denied connections

[David Carmichael <dec2955@xxxxxxxxxx>]

I do not know if the local RoadRunner Service does this.... But I heard on
"The Screen Savers" (TechTV) that some cable modem systems will ping
connected modems to know if they need to keep the reserved IP address open
or if they can reassign it to some other users system.

----- Original Message -----
From: "Bruce Bales" <bbales@xxxxxxxxxxx>
To: <discussion@xxxxxxxxx>
Sent: Sunday, August 26, 2001 7:29 PM
Subject: [aclug-L] Re: Denied connections


>
> Yes, most of mine are ports 80 and 139, with an occasional 27374.
>
> Thanks for the explanation, James.  Makes sense and now I feel more
secure.  Also,
> telnet is turned off by the stock Frazierwall.
> bruce
>
> james l wrote:
>
> > Root/Great Overall Dictator replies:
> > > I've been leaving my Frazierwall firewall turned on 24/7 for several
days.  It
> > > has been denying about 200 hits each 24 hours.  In the 24 hours
between about
> > > 0600 yesterday and 0600 today, I got almost 650 hits denied.  Kinda
makes me
> > > wonder what was going on before I got the wall up.
> > >
> >
> > Lots of the same here, mostly on port 80(http) (code red anyone?)
> > and a few on port 139 (smb).
> >
> > > A related question; What keeps someone from breaking in on one of the
ports that
> > > is not denied by the firewall?
> > > bruce
> > >
> >
> > Essentially each connection opens a 'tunnel' to the outside and if the
packet
> > is not sent as a response over one of these tunnels, it denys the
packet.
> > Unless, you specifically allow access to say port 80 (forewared to
another
> > machine), then there might be some problems.
> >
> > James L.
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