Re: Configuring SBS 2000 for NAT.

Crashes... SBS 2000 was designed to be setup and used with 2 NICs in the
server (so that ISA 2000 could be used in Firewall Mode). Have you checked
the event logs on the SBS server and on the workstations for clues as to why
he's having crashes? And what is actually crashing... is it the Dentrix App
or the workstation OS? If memory serves, SBS 2000 was fairly forgiving as
far as CALs were concerned. It wouldn;t just crash. It would give a CAL
error in the event logs and maybe in the workstation logs.

While it could be his router (a comm problem with the server), I suspect it
may have more to do with the SBS server (hardware or software problem). I
also wouldn't think that Static vs Dynamic IP addresses would be the cause
of crashes. However, installing a switch (not a hub) and putting all
workstation plus the server on it would take the router out of the equation
as far as accessing the Dentrix program on the server (assuming it a local
app and doesn't need to access the Internet). May be a cheap thing to try
and would be needed if you intend to set up SBS 2000 in the future to use
ISA as a firewall. If the hub doesn;t fix the problem, I'd say you're
looking at either a NIC hardware problem (or setting) or a Windows 2000
software issue.

Another thing you might look at is turning off "autodisonnect" on the
server:

How Autodisconnect Works in Windows NT and Windows 2000
http://support.microsoft.com/kb/138365

Turn off Autodisconnect...

net config server /autodisconnect:-1

I assume you installed SBS 2000 SP1a (the last update for SBS 2000) to the
server along with the latest MS security patches for the underlying Windows
2000 OS.

Small Business Server 2000 Service Pack 1a
http://www.microsoft.com/downloads/details.aspx?FamilyID=f4fc58d0-1fac-4927-84d7-189fa1b690be&displaylang=en

--
Merv Porter [SBS-MVP]
============================

"tlc_13200@xxxxxxxxxxx" <tlc13200hotmailcom@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote
in message news:8A8C41B9-17BE-494D-9C08-3166449DB7E5@xxxxxxxxxxxxxxxx
Hi Merv Porter-

Okay, the server is a Xeon Core 2 Duo processor, two of them with a Xeon
motherboard that has two NIC's on it. So, the hardware is current
technology
as of less than one year ago.

So, if I do this, and their software still crashes, is it possible that
the
HUB or router is the problem? Or, is it that he is using 7 PC's to log on
to
the server and licensing is the issuse? He's using a medical application
for
dental, and he has exam rooms each with a desktop computer, and from time
to
time it also crashes unexpectively.

So, I run MMC and install DHCP onto the server, and should I replace his
router(s). He has one 8 port wired router, and another 5 port... I
think?!?
I'm not there to confirm his hardware at the moment. But, I like to
propose a
solution for him up front going in on this, (I'm not as familiar with SBS
2000 as I have been working with 2003 R2 and now the new 2008 which I will
be
testing) - will he need to replace the router and use a HUB instead?

For he has presently, two (2) NIC cards, as I said, and if the application
still crashes, we must assume hardware. I've alredy spoken to DENTRIX,
their
software application support team, they claim it's a communication or
hardware issue that is having the problem. That's why I did this post
about
NAT. That's is all.

"Merv Porter [SBS-MVP]" wrote:

SBS 2000, 2 NICs, STATIC IP, ISA [PROXY SERVER], with ROUTER
http://www.sbslinks.com/sbs2000router.htm

Andy Goodman's articles on setting up SBS 2000
(SBS 2000 Walkthrough)
http://www.sbs-rocks.com/articles.htm#SBS 2000 Articles

Once you've got SBS 2000 set up correctly, if the apps continue to crash,
then you can start looking at hardware (maybe a NIC problem) or software
issues.

As a side note: If you only have a single NIC in the SBS 2000 server,
then
ISA will be running in Cache mode and not Firewall mode.

--
Merv Porter [SBS-MVP]
============================

"tlc_13200@xxxxxxxxxxx" <tlc13200hotmailcom@xxxxxxxxxxxxxxxxxxxxxxxxx>
wrote
in message news:BAC90061-E797-4701-8148-CC72675BECE2@xxxxxxxxxxxxxxxx
DHCP... there is a wizard in SBS 2000? Interesting... okay. So, I
configue
the NIC's for operation on a STATIC IP? Like 192.168.16.xxx? Because
what
you
said below is to configure the NIC card that way, which it is already.
Then
you said to Install & configure DHCP Server on SBS. And no, there isn't
any
existing DHCP on it!

But why is the application still crashing when trying to access it? In
other
words, what is it that STATIC IP is doing that DHCP would not do? How
does
changing it really resolve the crashing issue?!

Can you explain?

"SuperGumby [SBS MVP]" wrote:

NO, I am not talking about AD, I am talking about DHCP, I thought you
were
too.

I cannot put it more plainly. Configure SBS's NIC for operation on a
static
IP. Install and configure (using SBS wizards) the DHCP Server service
on
SBS. Ensure no other DHCP source exists on the SBS network segment.
Configure all client PC's to get IP via DHCP.

"tlc_13200@xxxxxxxxxxx" <tlc13200hotmailcom@xxxxxxxxxxxxxxxxxxxxxxxxx>
wrote
in message news:B7EBD4C8-A05E-45A7-B1BE-913DDFB69F55@xxxxxxxxxxxxxxxx
When you say, let SBS do it for me... are you referring about Active
Directory? I'm sorry, it's just that I am confused on what exactly
you
are
trying to get at...

I mean setting up the LAN adpater on the server to DHCP is easy, but
will
it
actually solve the problem that the customer is having?

"SuperGumby [SBS MVP]" wrote:

The problem is not specifically due to whether or not SBS is doing
DHCP.
It
is all about the proper configuration of networking.

It is possible to manually configure properly. It is easier to let
SBS
do
it
for you.

Throwing devices at the mix willy-nilly won't fix anything.

"tlc_13200@xxxxxxxxxxx"
<tlc13200hotmailcom@xxxxxxxxxxxxxxxxxxxxxxxxx>
wrote
in message
news:F133BB91-7974-479E-9F64-63C966C00D5D@xxxxxxxxxxxxxxxx
Sorry, I should have been more clear. They all have been logging
on
with a
static IP, instead of dynamic. (Fixed IP instead of DHCP). I know
very
little
about SBS 2000, compared to 2003, etc. I remembered that NAT had
be
set
in
order for Windows Server 2000 to route the "name address
translation"
for
both the internet and the workstations to exist together.

But, you are telling me that I have to tell SBS 2000 to confire
itself
as
DHCP and the problems will go away?!

They are still freezing up with connection issues, and have to
constantly
reboot their workstations, and even the server in order for the
software
to
work again, temporarily of course.

I figured, if I get them a new router and HUB switch, and plug
the
router
into one LAN adapter, and the HUB into another, and tell SBS 2000
to
work
it's NAT that it would operate without the system crashing.

Tell me is it the server causing the problem by not being DHCP?

"SuperGumby [SBS MVP]" wrote:

Without the current IPConfig from the server and a workstation
it
is
hard
to
pass comment. However, _most_ network related problems occur
because
things
do not happen in the manner SBS requires. The simplest way of
fixing
this
is
to allow SBS to be boss.

The users are not going to be confused by a change from static
to
dynamic
IP
addressing, they don't even see this process. (NOTE: I was
wondering
what
you meant by 'static logon'.)

"tlc_13200@xxxxxxxxxxx"
<tlc13200hotmailcom@xxxxxxxxxxxxxxxxxxxxxxxxx>
wrote
in message
news:1E38080C-9978-4241-8114-F8A530252A3C@xxxxxxxxxxxxxxxx
Hi SuperGumby,

Thank you for jogging my memory. Actually, no miragation was
performed.
All
that was done, was a installation and I believe there is an
AD. I
have
to
look at it of course.

But, what I do know, everything is setup statically. No DHCP!

I believe the scheme of IP addresses its behind is
192.168.16.xxx.

However, the DSL modem is plugged into the LINKSys router, and
they
are
sharing the internet through it. When you say: "Enable DHCP on
the
SBS.
Set
all workstations to get IP's via DHCP from SBS", I was
wondering...
would
it
be best to attach the workstations unto a wired HUB and attach
it
to
the
server, being that their router is failing at times, and
program
the
workstations that way?

And configuring the workstations to log in dynamically might
confused
their
printers they have. Which I believe is static. Although, they
are
HP
laser
printer, and inkjet.

I feel that their network connections is failing at times,
where
they
lose
the communication between the workstation and server
application.
Which
is
DENTRIX. A medical software application.

Would enabling SBS to DHCP really solve their problem?


"SuperGumby [SBS MVP]" wrote:

I'd probably try to get the current setup reliably working
before
implementing any change.

1) Post the current output from 'IPConfig /all' for both the
server
and
one
workstation.
2) If the router has any DHCP ability (they normally do),
disable
it.
Enable
DHCP on the SBS. Set all workstations to get IP's via DHCP
from
SBS.

Sounds like we can forget everything that happened 5 years
ago
because
you
have re-installed the server. When this was done, did you
'restore'
AD
from
the old box? migrate it? or simply throw away the old and
fresh
install?
If
it's a fresh installation have the client machines been
properly
introduced
to the new domain?

"tlc_13200@xxxxxxxxxxx"
<tlc13200hotmailcom@xxxxxxxxxxxxxxxxxxxxxxxxx>
wrote
in message
news:D35E15A3-EF04-48B6-9693-925A8EE12F84@xxxxxxxxxxxxxxxx
I have a client who is presently using SBS 2000, and is
having
constant
problems with network connections. Here's what is
happening.
First,
from
time to time he loses connections and has to restart all of
his
workstations,
and even the server to get he connections back.

(History)
Now, it was setup by somebody else over 5 years ago.
Recently,
I
rebulit
him
a new server and loaded back his operating system into it,
to
get
him
running. Except, his network is static IP's with internet
through
the
same
LAN adapter.

What I like to do for him, to solve his problem, is to
attach
his
second
LAN
adapter with a router, for the internet, either DHCP or
static
using
NAT.
Then, using a HUB attach all of his computers to the second
LAN
adater
and
configure it to log in each workstation statically. This
way,
he
will
not
have these issues again!

Is this a better choice, or is there something else as to
why
he
is
having
all of these problems.

What he has, is a DSL modem attached to a wired router,
along
with
all
his
clients, and they are seeing the server and logging in and
seeing
the
internet too.

Please advise if NAT is a good suggestion, I believe he is
logging
into
a
Domain controller... not sure, but can find out.

I appreciate any feedback on this topic!











.

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