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>From: "Pete" <(E-Mail Removed)>
>Sender: "Pete" <(E-Mail Removed)>
>Subject: Gateway Question
>Date: Sat, 10 Apr 2004 09:31:02 -0700
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>Hi,
>
> We have a strange setup for our network due to the fact
>that we are located in the sticks and internet
>connectivity is limited. We have just put in satellite
>internet access. I just changed our network settings
>around in w2k3 to point to the satellite. On the server I
>changed in DHCP the router/DNS/Win server settings to
>point now to the IP of the network server. Before we had
>the router pointing to a ISDN leased line router and the
>DNS servers IP listing was set for a dial out modem
>router. Yeah I know what your thinking. Why for the DNS
>servers pointing to the the modem router. We are running
>our own Exch server 2003 that sends email out through a
>different dial-out modem attached to our main server. The
>Exch server dials out to a LONG distance carrier every so
>often and brings down our email for company and then
>after min. hang's up. Well I have come to discover that
>if I didn't point Dns server to the other Modem router
>for internet access that the modem on server would stay
>on continuously. This was the way it was setup on their
>old network server and the only way until we got our
>satellite hookup for the new server to be setup.
>
>Ok phew, alittle winded but necessary for you to get
>picture of what's happening.
>
>Now we have satellite hookup. It's not great but better
>than modem access to internet. We have 16 Users/pcs that
>are attached to network. I set up the server settings
>now that In DHCP Router, DNS and Wins server is pointing
>only to new server. We disconnected modem router and
>modem attached to server. Now for my problem. Since
>everyone is using satellite for internet and email,
>during our busiest period of the day outgoing email will
>take forever to get out the door due to the fact that
>most of the users are trying to access internet at the
>same time. They are complaining of connectivity issues
>for internet. So my plan is to now reestablish the modem
>router that they had for internet access for half the
>users. So my question is it possible if I give some users
>static IP address and point their gateway to the modem
>router and set their prefered DNS to point to network
>server will they be able to access the old modem router
>for internet access instead of going through satellite.
>See I want to balance out the network here so half the
>users are pointing to old internet access through modem
>router instead. So in the following static IP setup can
>this be done? If so is the way I am explaining it you
>correct way?
>
>Our Network servers IP: 10.0.0.1
>Old Modem Routers Ip: 10.0.0.25
>
>
>Possible Static IP Address setup for a user:
>
>IP: 10.0.0.23
>subnet: 255.255.255.0
>gateway:10.0.0.25
>
>preferred DNS Server: 10.0.0.1
>secondary DNS Server: blank
>
>Is their anything in wins I should have set or DNS in
>advance to make this work?
>
>----
>
>In our old network setup we have a ISDN leased line and
>the old network servers router setting was pointing to
>it. So this caused everyones Default gateway to point to
>it instead of to itself and this worked. But users had
>long login times because users pc was trying to figure
>out where DNS server is. At least that's my take maybe
>I'm wrong.
>
>So what do you guys think, is my idea possible? Or is
>their a better route. please elaborate.
>
>Again sorry for the long winded post.
>
>Thanks,
>
>Pete
>
>
>
>
>
Pete,
So if I understand your situation correctly, you are looking to "shape" traffic out both of your internet connections. You can certainly configure half of the
client to go out the Satellite link and the other half to go out the ISDN link by modifying the gateway in the clients. If this is an Active Directory Deployment
then all of the client machine must point at the AD DNS Server for DNS and that server should forward to the ISP or use Root Hints.
Is there a point when the connection through the Satellite is fast? This may simply be a setting on the Satellite connection that needs to be "tweaked".
Satellite communication is a special case as the latency on these connections can sometimes wreak havoc on Ethernet communications. If this is a
DirecWay system i know that they have a tool called the LAN Client Configuration Utility that is supposed to help with this.
I assume that you are using Internet Connection Sharing on the Windows Server? If clients are reporting slow performance going through this server then
I would test from the server to be sure that your server hardware is not the bottleneck.
I guess the short answer to your question is:
1. Yes you can set up half the clients to use one gateway and the other half to use the other, but if this is an AD Environment then all clients will still have
to point to the AD DNS Server for DNS name resolution.
2. As long as all of the client are on the same network, i.e. all of the client have the same network address (192.168.0.x / 255.255.255.0) then they will
never use the gateway to communicate with each other on the LAN. They will only use the gateway to talk to system off the LAN.
3. I would check into the slowness of the Satellite link to see if there is anything that can be done there to improve the experience for your internal users.
Contact the support for your connection and see if there is anything that they can do to help.
T.J. Campana [MSFT]
Microsoft EPS Networking
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