Re: Multiple Static IP addresses through single DSL Modem
From: Doug Sherman [MVP] (dsherman_at_nospam.tampabay.rr.com)
Date: 06/29/04
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Date: Mon, 28 Jun 2004 21:50:42 -0400
You have a number of alternatives:
1. Some routers can accomodate and manage 2 public IP addresses. If your
Linksys router has this capability, you will find instructions in the
manual. However, most likely your Linksys does not have this capability; so
2. Connect the DSL modem to the hub (hopefully this is a switch) as you
have previously done. Connect the Win 2003 Server to one port and configure
it with one of the two static IP addresses. Connect the Linksys router to
another port, and configure its public IP address with the other static IP.
Connect your remaining computers to the LAN ports on the router - you can
connect an additional switch to the router if you need more ports. Don't
know what kind of data is sent to your husband's server, but the Linksys
will allow you to forward ports - eg. you could forward port 21 if he is
running an ftp server. If this does not serve his needs, you can connect
his computer directly to the switch and configure it with one of the static
IPs. Then you connect the Win 2003 server to the router and configure the
Linksys to map port 80 and port 25 to its internal address for web and mail
service.
3. Install a second network adapter in the Win 2003 server. Connect the
new adapter to the DSL modem and connect the LAN adapter to the hub/switch,
connect all other computers to the switch. You can then configure Windows
Routing and Remote Access with both public IP addresses, map one of them to
the internal IP address of your husband's computer, and all internal
computers will be able to access the Internet through the switch. See:
http://www.microsoft.com/technet/community/columns/cableguy/cg0503.mspx
Good Luck,
Doug Sherman
MCSE Win2k/NT4.0, MCSA, MCP+I, MVP
"C Newlin" <test@box49.com> wrote in message
news:2226b01c45d72$ee5f3b90$a601280a@phx.gbl...
> I'm hoping I am at least starting in a group that can
> point me to where I can go to get this question answered...
>
> Ok.
> We have DSL here at home and up to now, our ISP has given
> each of our 9 computers a semi-static, individual IP
> address, and we have connected simply by running the DSL
> line into a hub and then out to each computer.
>
> I run a small Window 2003 web and mail server on one
> computer, which hosts several websites and domains.
>
> My husband has one computer that acts as a private server
> for his cliends to send him data through, and then we have
> several other computers that are used for internet
> browsing, internal networking etc.
> These are all running Windows 2000 pro.
>
> Our ISP has informed us that they will now be providing us
> with only 2 IP addresses (both static).
>
> We will use one for the W2k 03 web/mail server, and the
> other IP address for everything else.
>
> My ISP has provided us with the IP addresses, SebNet mask
> and gatewayIP address, but neither they or we are all that
> sure what to do from there.
>
> We did just purchase a small LinkSys router on the
> assumption we might need that, so we have the router, a 16
> port network hub, and a bunch of computers.
> 2 of these (my web server and hubby's data server) must be
> world accessable, but the rest do not need to be.
>
> Can someone give me some clues as to how to get set up, or
> point me to a more appropriate resource?
> Thank you!
>
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