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Re: [TCLUG:21970] Should DSL or Cable modem
AFAIK, MediaDumb uses Microshaft's DHCP, MAIL, and other inet software. I was
told, "If you use all pieces from the same puzzle, they fit together a little
better," by a tech at tier 3.
On Tue, 03 Oct 2000, you wrote:
> Well if his dhcp client sends a Renew request to the server, the server
> can reject it. The dhcp client will then just ask for a new IP. As long
> as he doesn't muck with the client (or bypass it altogether and just
> statically configure it) he can't cause any trouble. The server can
> always reject renew requests if the address has already bgeen reassigned.
> I don't think there's anything he can do to the configuration of the
> client that could screw anything up, I think he'd have to modify the
> source.
>
> If the IP has already been leased to someone else, and his client asks for
> that IP (in a renew request) the server will send a NACK back, then an
> OFFER with a new IP.
>
> In any case, by changing the lease time you're probably not helping
> yourself at all. As soon as the lease ends your client will send a renew
> request back to the server and you'll get your IP back anyways. The lease
> time just dictates how long before you have to renew again, but if the
> server reboots you may be SOL. I believe ISC's stores the lease
> information in /var somewhere so if the server restarts it'll know who has
> what leased...but I don't know about whatever DHCP server they're using.
> If it's Microsoft's it'll probably explode or something...
>
> Adam Maloney
> Systems Administrator
> Sihope Communications
>
> On Tue, 3 Oct 2000, Thomas T. Veldhouse wrote:
>
> > Yeah, and that somebody is going to be pissed if they find out that somebdoy
> > is using their IP and causing them to have problems with there cable modem.
> > Most users are not going to know what the problem is and they are simply
> > going to call MediaOne and complain. If MediaOne then finds this, one had
> > better watch out, because suddenly the support costs are larger than the
> > profits that they are making off of the trouble causing individual.
> >
> > Tom Veldhouse
> > veldy@veldy.net
> >
> > ----- Original Message -----
> > From: "Adam Maloney" <adamm@sihope.com>
> > To: <tclug-list@mn-linux.org>
> > Sent: Tuesday, October 03, 2000 9:17 AM
> > Subject: Re: [TCLUG:21970] Should DSL or Cable modem
> >
> >
> > > Well if they ran ISC's DHCPd they can set Max-Lease-Time, which is the
> > > maximum amount of time a given address will be leased for. That's not to
> > > say that when the lease expires you won't renew and get it again, but if
> > > you don't renew right away someone else will probably get it.
> > >
> > > Adam Maloney
> > > Systems Administrator
> > > Sihope Communications
> > >
> > > On Mon, 2 Oct 2000, Eric F Crist wrote:
> > >
> > > > Trust me, it works. I've gotten calls from TW and MediaDumb (aka ATT)
> > and
> > > > they've not been able to stop it, short of pulling the provision for
> > your MAC
> > > > address.
> > > >
> > > > But, there are ways around that too. =P
> > > >
> > > > On Mon, 02 Oct 2000, you wrote:
> > > > >
> > > > > Thats *only* if the other end accepts such bad things.
> > > > >
> > > > > AFAIK, you can setup ISC to ignore it.
> > > > >
> > > > > * Eric F Crist <ecrist@ardent-hacker.net> [001002 21:37]:
> > > > > > After a little more research (I had a brain-fart) the file, on a
> > freebsd =
> > > > > system
> > > > > > is /var/db/dhclient.leases
> > > > > >=20
> > > > > > This file is realatively simple and straightfoward. For information
> > on y=
> > > > > our
> > > > > > box, type man dhclient.leases
> > > > > >=20
> > > > > > If you have questions or comments, feel free to email me.
> > > > > >=20
> > > > > >=20
> > > > > >=20
> > > > > > Au Contrair on the static IP. If you're into the computer hacking
> > side of
> > > > > > things, you can simply change your lease on the IP to never expire.
> > Ther=
> > > > > e's a
> > > > > > file located on your hard drive that actually sets your lease. This
> > is
> > > > > > overwritten at the time of renewal by the DHCP server. I have done
> > this =
> > > > > myself
> > > > > > and know others who do it successfully. Maybe not a legit static
> > IP, but=
> > > > > until
> > > > > > they find out, who cares?=20
> > > > > >=20
> > > > > > On Mon, 02 Oct 2000, you wrote:
> > > > > > > Disadvantages to cable modem (from my point of view)
> > > > > > > - no static IPs, may be coming soon though
> > > > > > > - no services on your machine, or you get booted
> > > > > > >=20
> > > > > > > Advantages to cable modem
> > > > > > > - much faster
> > > > > > >=20
> > > > > > > I got this information from the Time Warner sales rep and the tech
> > rep =
> > > > > that
> > > > > > > showed up at my apartment complex trying to get subscribers.
> > > > > > >=20
> > > > > > > --=20
> > > > > > > Jon Schewe | http://eggplant.mtu.net/~jpschewe
> > > > > > > For I am convinced that neither death nor life, neither angels=20
> > > > > > > nor demons, neither the present nor the future, nor any=20
> > > > > > > powers, neither height nor depth, nor anything else in all=20
> > > > > > > creation, will be able to separate us from the love of God that=20
> > > > > > > is in Christ Jesus our Lord. - Romans 8:38-39
> > > > > > >=20
> > > > > > >=20
> > > > > >
> > > ---------------------------------------------------------------------
> > > > > > > To unsubscribe, e-mail: tclug-list-unsubscribe@mn-linux.org
> > > > > > > For additional commands, e-mail: tclug-list-help@mn-linux.org
> > > > > > --=20
> > > > > > Eric F Crist
> > > > > > System Administrator
> > > > > > Ardent-Hacker.net
> > > > > >=20
> > > > >
> > > ---------------------------------------------------------------------
> > > > > > To unsubscribe, e-mail: tclug-list-unsubscribe@mn-linux.org
> > > > > > For additional commands, e-mail: tclug-list-help@mn-linux.org
> > > > > >=20
> > > > >
> > > > > --=20
> > > > > Scott Dier <dieman@ringworld.org> #nicnac@efnet=20
> > > > > http://www.ringworld.org/ finger:dieman@destiny.ringworld.org
> > > > >
> > > >
> > > > ----------------------------------------
> > > > Content-Type: application/pgp-signature; name="unnamed"
> > > > Content-Transfer-Encoding: 7bit
> > > > Content-Description:
> > > > ----------------------------------------
> > > >
> > > > ----------------------------------------
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> > > > Content-Transfer-Encoding: 7bit
> > > > Content-Description:
> > > > ----------------------------------------
> > > >
> > > > --
> > > > Eric F Crist
> > > > System Administrator
> > > > Ardent-Hacker.net
> > > >
> > > > ---------------------------------------------------------------------
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> > > >
> > > >
> > >
> > >
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> > >
> > >
> >
> >
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> >
> >
>
>
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--
Eric F Crist
System Administrator
Ardent-Hacker.net