Date: Wed, 4 Dec 1996 21:50:22 -0500 From: "Steve Sims" <SimsS@IBM.Net> To: "Robert Nordier" <rnordier@iafrica.com> Cc: <questions@FreeBSD.ORG> Subject: Re: HELP: IIJ-PPP demand-dial with dynamic IP on both ends Message-ID: <199612050251.CAA80070@smtp-gw01.ny.us.ibm.net>
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Well, that seems to be the kick I needed.
I took another look at the references you quoted and decided "what the heck."
I tried adding bogus local and remote addresses in my ifaddr command, but
that didn't help a whole lot. So I plugged the "add 0 0 <bogus remote>" line
back in and counted on ppp sorting out the whole routing mess. Success!
Sweet success!!!
So (for the benefit of the mail archives, if no one reading this) I have in
my /etc/ppp.conf:
demand-dial:
set debug lcp
set redial 3 10
set phone 123-4567
set login "TIMEOUT 5 login:-\\r-login: myname word: mumble"
set ifaddr 1.2.3.4/0 5.6.7.8/0 255.255.255.0
add 0 0 5.6.7.8
and in /etc/ppp.linkup, I've got
demand-dial:
delete all
add 0 0 HISADDR
Strangely (or fortunately) the "delete all" line doesn't muck up the static
routes that I've so painfully crafted, but it does flush the bogus
"add 0 0 5.6.7.8" entry that the ppp.conf put in.
Woo-hoo!
...sjs...
----------
> From: Robert Nordier <rnordier@iafrica.com>
> To: SimsS@IBM.Net
> Cc: questions@FreeBSD.ORG
> Subject: Re: HELP: IIJ-PPP demand-dial with dynamic IP on both ends
> Date: Wednesday, December 04, 1996 9:05 PM
>
> Steve Sims wrote:
>
> > OK,I relent! I've been mucking with the -auto feature of iij-ppp for
days
> > and can't get it to work reliably. I've come to the point where
interactive
> > mode works flawlessly every time, but can't get the blasted thing to
reliably
> > demand dial.
> >
> > I've looked at the ppp.conf.samples, .filter.samples, .linkup.samples
until
> > I'm blue in the face.
> >
> > I've even had it sorta-work a couple of times -- the *FIRST* time a
> > demand-dial situation occurs -- but it won't work reliably on subsequent
> > demand-dials.
> >
> > Also, it seems to *NEVER* work if I:
> > # telnet localhost 3000
> > PPP ON localhost> quit all
> > #
> >
> > and subsequently restart ppp -auto [system] from the command line.
> >
> > The biggest problem (I think) is that the addresses on both ends (ISP and
> > local) are dynamic - I can't figure out how to set up the ifaddr stuff to
> > accommodate this scenario. All of the references - source, manpages,
> > handbook and FAQ - seem to assume that I'll know, in advance, what the
remote
> > side address will be.
> >
> > Does anyone have a working ppp.conf and / or ppp.linkup file that works
in
> > -auto mode with both ends of the line having dynamic addresses?
>
> The following entry in `/etc/ppp/ppp.conf.iij' is probably pretty close
> to what you need:
>
> #
> # Here, we assume that IIJ server has 192.244.177.2 as their address.
> # This assumption may not be correct, but we'll fix it later.
> # Also, take a look at ppp.linkup.
> #
> # % ppp -auto iij-demand
> #
> # Use dummy ping to generate a call to IIJ.
> #
> # % ping 192.244.177.2
> #
> iij-demand:
> set debug lcp
> set phone 0355118852
> set login "TIMEOUT 5 login:-\\r-login: MyUserName word: MyPassword PPP"
> set ifaddr 0 192.244.177.2/20
> add 0 0 192.244.177.2
>
> First, delete the `add' line. The file `/etc/ppp/ppp.linkup.sample'
> contains (better) `add' logic, anyway, so just rename that file to
> `/etc/ppp/ppp.linkup'.
>
> You're not sure of either address, so you can indicate that by a '/0'
> after each address:
>
> set ifaddr 160.124.92.116/0 192.244.177.2/0
>
> It shouldn't matter what addresses you use in `set ifaddr'. You
> should even be able to use the actual line above, because it says
> (in effect) "I really don't care whether you use these addresses or
> not".
>
> I found that using 0 (as in the example) for the local address
> didn't work well, and use a static address assigned to me for
> connecting to another ISP (the same `ifaddr' works for both). The
> local address won't be acceptable to this ISP, of course, but the
> '/0' gives the go-ahead to change it.
>
> This setup requires a dummy ping (as mentioned in the comments) to
> kick start it, but only on the first occasion following a reboot.
> Thereafter it will dial out automatically as required.
>
> --
> Robert Nordier
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