RE: Using Public IP address behind a Private DHCP Server

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Sorry for the original limited information. So I will try to address more in
my repsonse here.

The time clock is nothing more than a device (not attached to any computers)
that is connected via ethernet connection to the network. The time clock
allows for the assignment of a static IP address, subnet, gateway, etc from
its led interface as a stand alone digital interface for punch in and punch
outs.

The time clock interfaces with a third party application from ADP (automated
data payroll) in a web based application, maintained on their web-servers.
The time clock holds employee time records and then is supposed to relay that
information back to the ADP application vai the Internet.

My topology is setup as follows. T1 comes into the building and connects to
router provided by AT&T, this is connected to servers first NIC card
(Internet Network Connection). The servers 2nd NIC (Server Local Area
Connection) card provides local network connectivity back to a managed
switch.

The server (IRON1) is running SBS 2003 and for the purposes of firewall
management I have also installed ISA Server 2000, since no hardware Firewall
is between the server and the T1 router.

I have been assigned several Private IP addresses from SBC in the event that
I need them but I am currently only using one that that is the one assigned
to the first NIC card providing connectivity to the Internet (Internet
Network Connection).

In a nutshell I need to be able to provide ADP (Automated Data Processing)
one of our public IP addresses that I can assign to this time clock and they
can ping from their servers to pull data from to their off-site applications.

Thanks again for any and all responses.

""Brandy Nee [MSFT]"" wrote:

> Dear Customer,
>
> Thank you for posting to the SBS Newsgroup.
>
> Thanks a lot for Andrew's input!
>
> I am sorry that from your description, I cannot have a clear idea what
> exact goal you want to achieve. So please help to gather following
> information for research:
>
> 1. Do you want to publish a NTP Server through ISA Server?
>
> 2. Do you install the "Time Server" on SBS Server or ISA Server?
>
> 3. Where did you install ISA Server, SBS Server or another machine?
>
> 4. What is the version of ISA Server, ISA 2K or ISA 2K4?
>
> 5. What is your Network Topology? For example:
>
> {ADP} {Internet} {Router} {NIC2} {SBS 2K3 Server} {NIC1} {Internal Clients}
>
> 6. I am sorry that I am not very clear "ADP for payroll processing in an
> Internet application", is "ADP" a third party application?
>
> 7. Please explain in detail "I can assign a private IP address and ping the
> clock all day long, but what method do I use to make use of my private IP
> so that ADP can gain access to the clock from outside my network".
>
> For your additional information:
>
> The KB article 295667 describes how to allow connections to third-party
> Internet-based update services, the connection to a software vendor update
> service from an update application that is connected to the Internet
> through Microsoft Internet Security and Acceleration Server (ISA) 2000.
>
> 295667 How to Allow Third-Party Internet Application Connections Through ISA
> http://support.microsoft.com/?id=295667
>
> Please take your time to perform the steps above and collect the
> information for us to troubleshoot your issue. I am looking forward to
> hearing from you!
>
> Best regards,
>
> Brandy Nee
>
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>
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> --------------------
> >Thread-Topic: Using Public IP address behind a Private DHCP Server
> >thread-index: AcXvsi+Z6C+invoeSqiBtgJwXqco+g==
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> >From: "=?Utf-8?B?Uy5XLg==?=" <SW@xxxxxxxxxxxxxxxxxxxxxxxxx>
> >Subject: Using Public IP address behind a Private DHCP Server
> >Date: Tue, 22 Nov 2005 14:15:03 -0800
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> >
> >Please excuse my ignorance here in the matter, in advance !!
> >
> >I am using SBS 2003 and have private IP's being assigned via DHCP server
> >from the SBS. It is also using ISA server acting as my gateway.
> >
> >I have several Public IP addresses of which I need to use one for a TIME
> >CLOCK to communicate with ADP for payroll processing in an Internet
> >applicaiton.
> >
> >I can assign a private IP address and ping the clock all day long, but
> what
> >method do I use to make use of my private IP so that ADP can gain access
> to
> >the clock from outside my network? ISA ? RAS ? IIS ??
> >
> >Any help is appreciated, but please forward some knowledge base articles
> to
> >make it concrete.
> >
> >THANKS !!
> >
>
>
.