CAP 6.0pl194 vs. LaserWriter Bridge 2.0.1
Darryl Lee
LaserWriter NTR attached via Localtalk. Got Network Software
Installer v. 1.5.1 and installed the right drivers, AND spiffy cool
LaserWriter Bridge 2.0.1. Cool! Now everybody can see the NTR.
That was Friday.
Monday i decide to get CAP up and running. Native Ethertalk. UAR.
Uhoh...
Suddenly, LW NTR is missing. Works when i change Network setting to
plain Localtalk. But when i switch to Ethertalk, it's gone.
The CAP server stays on all the time. The LC III gets turned off at
the end of the day, on in the morning. So...i'm guessing there's some
kind of network numbering, or maybe renumbering, that isn't happening
quite right.
Any ideas? Suggestions? Patches to CAP? >:}
Thanks!
--
Darryl Lee <zda...@mcl.ucsb.edu> | "Systems Guy" | Davidson Library
Bob Badaracco
Lee) wrote:
You say you've configured CAP with UAR? If so that maybe where your problem
is. Make sure UAR *is* configured properly. You may want to put CAP on it's
own zone and keep everything else separate. In other words put the LC on
a default zone, say Production and CAP on something like CAP_Server. By
segragating these entities you stand a better chance of getting things to work.
UAR really needs to know exactly how your network is configured. If you're
using a uar.conf file network numbers, existing routers, etc., have to be
listed there. If you've got the latest UAR package, read the docs and sample
uar.conf file. After reading all this, maybe 3 or 4 times over, I finally got
CAP to run!
Bob
Darryl Lee
>You say you've configured CAP with UAR? If so that maybe where your problem
>is. Make sure UAR *is* configured properly. You may want to put CAP on it's
>own zone and keep everything else separate. In other words put the LC on
>a default zone, say Production and CAP on something like CAP_Server. By
>segragating these entities you stand a better chance of getting things to work.
>UAR really needs to know exactly how your network is configured. If you're
>using a uar.conf file network numbers, existing routers, etc., have to be
>listed there. If you've got the latest UAR package, read the docs and sample
>uar.conf file. After reading all this, maybe 3 or 4 times over, I finally got
>CAP to run!
Here's the situation...and i'm sure i'm missing something:
Our campus _does_ use seed routers. But our subnet's router is not
set up to route Appletalk. So essentially, we are a single Appletalk
subnet. No router.
So, i'm thinking...no router, no need for a seed router. i should be
able to go into non-seed mode, uar will pick up the network
information it needs from other Macs on our subnet, and everything
will be fine.
But this is not the case. i run uar -C eth0. i wait 20 seconds. i
run atis. i wait 20 seconds. i run atlook. i get this:
> pandora# /usr/local/cap/atlook
> abInit: [ddp: 255.00, 252] starting
> Looking for =:=@ ...
And then nothing. But there ARE Macs and LaserWriters out there. i
can seem them from my Powerbook.
So...ugh...maybe i should just walk myself over to the bookstore and
buy the book book on Appletalk protocols. But...i thought i'd ask
here. >:}
Patrick D. McSwiggen
> Here's the deal. Threw an Ethernet card into an LC III w/ a
> LaserWriter NTR attached via Localtalk. Got Network Software
> Installer v. 1.5.1 and installed the right drivers, AND spiffy cool
> LaserWriter Bridge 2.0.1. Cool! Now everybody can see the NTR.
>
> That was Friday.
>
> Monday i decide to get CAP up and running. Native Ethertalk. UAR.
> Uhoh...
>
> Suddenly, LW NTR is missing. Works when i change Network setting to
> plain Localtalk. But when i switch to Ethertalk, it's gone.
There are probably a *number* of things going on (as there always is when
something new is started up). Your first problem is the LW NTR! It has a
broken ROM that incorectly calculates DDP checksums. I'm suprised that you
had it working with LW Bridge 2.0.1 at all, but I guess the clue to that
is in your later posting that you basically have (had!) no router:
In article <41ftgt$b...@ucsbuxb.ucsb.edu>, zda...@mcl.ucsb.edu (Darryl
Lee) wrote:
> Our campus _does_ use seed routers. But our subnet's router is not
> set up to route Appletalk. So essentially, we are a single Appletalk
> subnet. No router.
I don't understand the whole LW NTR/LW Bridge problem, but it does revolve
around the interaction of the LW NTR and the router.
Once you've added UAR, you now have a router, so I would expect the
problem to crop up. CAP and UAR can be configured to ignore the DDP
checksums. See the CAP FAQ for a (small) discussion of how to do this.
From your first post I would expect that to be the end of it, except from
your second post it sounds like you have other problems:
> So, i'm thinking...no router, no need for a seed router. i should be
> able to go into non-seed mode, uar will pick up the network
> information it needs from other Macs on our subnet, and everything
> will be fine.
>
> But this is not the case. i run uar -C eth0. i wait 20 seconds. i
> run atis. i wait 20 seconds. i run atlook. i get this:
>
> > pandora# /usr/local/cap/atlook
> > abInit: [ddp: 255.00, 252] starting
> > Looking for =:=@ ...
>
> And then nothing. But there ARE Macs and LaserWriters out there. i
> can seem them from my Powerbook.
I would concentrate on getting UAR/CAP going first (probably with the DDP
checksums turned off, since that's most likely what you would want later),
and then worry about adding the LW NTR with LW Bridge. An alternate
solution to (only) the LW NTR problem is to use LW Bridge 1.0. For some
reason that combination works OK.
Something you may want to consider though... Do you really need UAR if you
otherwise have a very simple EtherTalk network?
--
Patrick D. McSwiggen Internet: pat.mc...@uc.edu
Department of Mathematics <mcs...@kyodai.csm.uc.edu>
University of Cincinnati
Darryl Lee
It looks like my mail server is picking stuff up faster than my news
server. So...
Pat.Mc...@UC.Edu (Patrick D. McSwiggen) writes:
> Something you may want to consider though... Do you really need UAR if you
> otherwise have a very simple EtherTalk network?
NO! This Appletalk network is ISOLATED from the rest of the campus.
But how do i run aufs w/o uar? Do i need to run atis still? aarpd?
Argh...SOMEbody oughtta write some better docs for CAP. >:P
Patrick D. McSwiggen
Lee) wrote:
> It looks like my mail server is picking stuff up faster than my news
> server. So...
>
> Pat.Mc...@UC.Edu (Patrick D. McSwiggen) writes:
>
> > Something you may want to consider though... Do you really need UAR if you
> > otherwise have a very simple EtherTalk network?
>
> NO! This Appletalk network is ISOLATED from the rest of the campus.
> But how do i run aufs w/o uar? Do i need to run atis still? aarpd?
You need CAP for AUFS and the rest of the AppleTalk pieces, but not UAR
*if* you are running CAP on one of the machines that supports CAP in
native EtherTalk mode. For example, you would not need UAR if you are
running CAP on a Sun box (either SunOS 4.x.x or Solaris 2.x). Look at the
CAP FAQ and/or one of the (many) text files at the top level of the CAP
distribution for what machines can run CAP directly. I don't remember
which file that would be. The problem is, I'm not sure how up-to-date the
docs are :(. It might be easiest to just run configure and see whether it
will let you specify Native EtherTalk an *no* UAR.
If you have problems, post to this group again with specifics of the
machine/system you are running under and someone should be able to tell
you whether you need UAR or not.
If you happen to be running Solaris, then you need to check out a certain
WWW site with info on running CAP under that system (that's what I'm
using). I don't have the URL at my finger tips (although it's saved
somewhere in my news clippings file :). If that is your system, send me
e-mail and I can easily find it.
David Hornsby
>Here's the deal. Threw an Ethernet card into an LC III w/ a
>LaserWriter NTR attached via Localtalk. Got Network Software
>Installer v. 1.5.1 and installed the right drivers, AND spiffy cool
>LaserWriter Bridge 2.0.1. Cool! Now everybody can see the NTR.
>That was Friday.
>Monday i decide to get CAP up and running. Native Ethertalk. UAR.
>plain Localtalk. But when i switch to Ethertalk, it's gone.
This is from the CAP FAQ ...
> CAP uses DDP checksums by default, the checksum code in the Phaser III PXi,
> Apple Personal LaserWriter NTR, QMS PS1700, Talaris 1590-T and others
> incorrectly calculate the checksum value and the packet is dropped. The
> programs aufs, lwsrv, papif, atis, atlooklws and tlw now support the -k
> option to disable CAP checksums on a per-program basis. To disable CAP
> checksums completely, add the following lines to the m4.features file,
> rerun gen.makes and remake CAP.
>
> # + DONT_DOCHKSUM no DDP checksums (Tektronix Phaser III PXi & Apple LW NTR)
> define(`specialcflags',concat(specialcflags,` -DDONT_DOCHKSUM'))
> #
>
> Some AppleTalk routers will add checksums to packets that traverse them.
> This may make the -k option ineffective. To solve this problem, disable
> checksums on the router. With UAR, use the -c option. With cisco routers,
> use "no appletalk checksum" in the configuration. Disabling checksums,
> except to make use of "broken" hardware, is not recommended.
- David.