Date: Tue, 15 Jun 1999 19:25:52 -0400 (EDT) From: Howard Goldstein <hgoldste@mpcs.com> To: Doug White <dwhite@resnet.uoregon.edu> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: dhcp client request for a netblk - ideas? Message-ID: <14182.57600.845707.33747@penny.south.mpcs.com> In-Reply-To: <Pine.BSF.4.03.9906151556580.11204-100000@resnet.uoregon.edu> References: <14179.42425.782408.505357@penny.south.mpcs.com> <Pine.BSF.4.03.9906151556580.11204-100000@resnet.uoregon.edu>
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Doug White writes:
> On Sun, 13 Jun 1999, Howard Goldstein wrote:
>
> > Telco willing, I'm having SDSL installed this week. It comes with a
> > /28 static netblk but according to the salesdroid, with a catch and a
> > half: The addresses must be leased.. Once leased, they're static.
>
> dynamic-bootp, eh?
>
> Er, that doesn't smell right ... why on earth bother with DHCP
> then??
This is what they tell me. The kind lady at the other end didn't
have/wouldn't tell me the IP block.
> And
> just what keeps you from sucking up as many IPs as you can generate
> Ethernet addresses for? >>:->
"Kids, don't try this at home"
>
> > My question is how to coerce my firewall into leasing the entire /28
> > on behalf of the network it's hiding (and NATting, possibly,
> > hopefully) and without forcing the hidden hosts to use dhcp, or to
> > exist even as ifconfig aliases.
>
> Why not plug the user boxen into the network *temporarily*, suck your
> lease, then rearrange them as needed?
Would this work? I thought the protocol mapped a host address to a
MAC. If I did that and pulled the {blah} box back off the lease
(post-suck) would the ethernet link bomb? Sure, could try this too.
> And call your dopey Telco back -- that story doesn't check out. Try the
> 'that machine doesn't support DHCP story' and see if that
> flies. :-)
We *are* talking about the phone company. Is not the phone company
arrogant simply because they can be? If I tell them it doesn't
support DHCP they're going to tell me to buy their cute little $600
router that'll do this for me. I wonder how it's doing it
> > If this were a normal routing situation I'd run gated or something to
> > advertise the /28 route but this funky Fujitstu SDSL modem seems to
> > have different ideas about routing.
>
> Fujitsu, eh? I wasn't aware they made dsl equipment.
Ugly little black box, looks like an audio CD Walkman that joined a
gym a few months ago. RJ11 and RJ45 jacks for 10bt and DSL data. Its
power supply failed today not more than a few hours before the
installer came to add the audio/data splitter. It took some doing but
after a long phone call at least he was persuaded to leave his
(presumed functional) modem behind.
Man I wish bpf was compiled in the GENERIC kernel, I really would have
liked to have tried dhclient before unplugging the thing to go home.
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