Cannot view sharepoint from outside the internal network.

I have sharepoint 3.0 installed with ISA 2000.   I have two NICs on the PC one is 192.168.1.3 (external side of ISA) and 192.168.0.20 (internal side of ISA).  I have the Sharepoint setup to 192.168.0.20.  I have also setting it to 192.168.1.3 with no luck.  I have a basic Linksys router there with the port 80 forwarded to the 192.168.1.3 of the Sharepoint Server.  I have a web publishing rule in ISA with link redirection setup.  If I connect to the VPN i can get to the site but otherwise from outside the internal network I get a page cannot be displayed.
nxpsupportAsked:
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Keith AlabasterEnterprise ArchitectCommented:
Please tell me that you are not running Sharepoint on a PC that is also running the ISA2000 services?
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nxpsupportAuthor Commented:
i don't have an option because they only have one server.  Its a non profit orginization.  I never use ISA anywhere but here and its for a content filtering system that is required.  Is this impossible?
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nxpsupportAuthor Commented:
I didn't think this would be such an issue since 2003 sbs can run isa server 2004 and sharepoint at the same time
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Keith AlabasterEnterprise ArchitectCommented:
True - but you hadn't mentioned SBS as your environment had you :) - You also mention ISA2000 in your first post and then isa2004 now, which version is it? Wgar version of SBS? Assuming its SBS2003 then...

Two immediate things
First, have you rerun the ceicw since installing ISA server and Sharepoint?
Have you run up the SBS BPA?
http://www.microsoft.com/Downloads/details.aspx?familyid=3874527A-DE19-49BB-800F-352F3B6F2922&displaylang=en

What does it report?
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nxpsupportAuthor Commented:
It is 2003 Standard with ISA 2000.  It just didn't cross my mind that it would be an issue.  I was just giving you an example as to why I thought it wouldn't be an issue.
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Keith AlabasterEnterprise ArchitectCommented:
lol - nevermind - In summary then you have Windows 2003 standard edition and ISA2000 - on which you are also running Sharepoint 3.0?

Ok - you cannot run the bpa (best practice analyser) as it is not supported under ISA2000 - in fact hardly anything is supported as ISA2000 itself went out of support back in 2006 as you probably already know.

You mention a VPN server - are you running this on the PC as well (through ISA presumably)?

i hear you about the client being a NFP organisation but running everything on the one box does cause you an administrative set of issues. As you say SBS is designed from the ground up to run everything on the same box - at the same time SBS provides a number of configuration wizards, such as the ceicw, that 'integrates' everything together. Even SBS no longers supports ISA2000 though - service pack 1 provided an upgrade to ISA2004 for Premium users.

ISA is designed to control traffic that passes through its interfaces from one network to another network - in your scenario though you are asking the tr4affic to stop at ISA itself. This means your publishing rules - for Sharepoint as an example, would need to point to a 192.168.0.x address.

It would be really useful to get a complete description of your environment

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nxpsupportAuthor Commented:
You pretty much have the full description.  I do not know what else I could provide you.  YOu seem to understand exactly what I am trying to do.  Do you think it is impossible?  
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nxpsupportAuthor Commented:
Couldn't get it to work and there was no documentation anywhere else to get it to work.
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