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Here is my environment:
I have 2 subnets in my environment: NetworkA 192.168.10.x is our main network with computers, servers, printers, etc. NetworkB 10.1.10.y is our facilities network with thermostats, cameras, monitoring devices.

  • ServerA: HP DL165 G7, Windows 2008 R2 64bit, domain controller, with DHCP, DNS. this is on NetworkA
  • ServerB: HP DL165 G7, Windows 2008 R2 64bit. It is using both NIC cards. NIC#1 goes to the networkA. NIC#2 goes to NetworkB
  • Firewall: Juniper Netscreen 5gts. It is on NetworkA.

I am trying to get the computers on NetworkA to see the items on NetworkB. many of the items on NetworkB have built-in webserver software.

I'm sure I have to make a static route, but i am not sure where. On serverA (because it is a DNS server)? Firewall (because it's the gateway)? ServerB (because you can see NIC#1 on it)?

Or i'm barking up the wrong tree. Can someone point me in the direction to go?

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closed as off-topic by MDMarra, Ward, Falcon Momot, Dave M, mdpc Sep 12 '13 at 17:48

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You need Routing and Remote Access Services (RRAS). – Sammitch Sep 10 '13 at 20:02
I put RRAS on ServerA? – Scott Sep 10 '13 at 20:03
Server B. You have a server with more than one NIC plugged into more than one network and that server needs to pass traffic between those networks? That's a router. – Sammitch Sep 10 '13 at 20:06
I installed RRAS onto serverB. I've done a couple of configurations on it but it hasn't worked yet. I was able to get NetworkB to communicate with NetworkA, but not NetworkA to networkB. I'm thinking that the firewall (networkA's gateway) needs a static route to ServerB. am I on the right track? – Scott Sep 11 '13 at 0:35
up vote 8 down vote accepted

You need a router to route traffic between the two subnets.

Usually, you would have a core layer 3 switch (router) that will handle this. You can also use something like RRAS to turn a Windows Server into a router, though it is far less common than having a hardware router handle this.

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In Microsoft terminology, we're dealing with a Simple routing scenario, as illustrated below:

enter image description here

Deploying RRAS for private network routing is relatively simple:

  1. Open the RRAS Management Console (rrasmgmt.msc)
  2. Right-click your RRAS server in the left pane and select Properties
  3. Enable it as an IPv4 Router with LAN routing only
  4. In the console, expand IPv4, right-click Static Routes
  5. Create a static route for NetworkA:
    1. Select "New Static Route"
    2. Interface: NIC#1 (since this is the interface connected to NetworkA)
    3. Destination: (the network adress of NetworkA)
    4. Network Mask:
    5. Gateway: Same as the default gateway on NIC#1
    6. If the RRAS is the only link between the two network segments you don't need to worry about the Metric (or the cost) of the route.
  6. Repeat step 5.1-5.6 for NetworkB
  7. Configure the gateways with static routes for the other network, with the RRAS server as gateway

If ServerB is the gateway for NetworkB, you just need to add a static route for NetworkB on the Juniper box.

If you only need a select set of clients on NetworkA to access NetworkB, add the static routes on the individual clients instead. You can either do it:

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