Networks

Each router has to have a route to the other routers, which you are figuring out. However, the usal router like CISCO etc. yuse routing protocols to determine the next hope or best route to an IP. You will need a static route to each router, as I cannot get to your diagram I will make one up that will work.

Router A IP: 192.168.1.5
Subnet Mask: 255.255.255.0
Default gate should stay whatever the ISP gave your.
I don't know the command for your routers so I will try it like NT: route add 192.168.10.0 255.255.255.0 192.168.10.1 1
The 0.0.0.0 0.0.0.0 "Internet IP Gateway" will get all unknown net traffic to be dumped to the External interface. You will have to add the statics so that when a PC whose gate is 192.168.1.5 sends a packet destined for 192.168.10.X it will have a route and won't send it to the Inet interface.

Even after you add these routes to the routers, you will still have to add static routes to the machines to see the domains/workgroups unless you have NT/200X. Use the LMHOSTS and HOSTS on each box so the net neighborhood will populate

Can't help to much

For the Linksys routers, it works this way (others should be similar):

Select a Static Route Entry from the drop down list. The device supports up to 20 static route entries.
Enter the following data for the static route:
Destination LAN IP : Enter the network address of the remote LAN segment. For a standard Class C IP domain, the network address is the first 3 fields of the Destination LAN IP, while the last field should be 0.

So in your example, 192.168.10.0

Network Mask : Enter the Subnet Mask used on the destination LAN IP domain. For Class C IP domain, the Subnet Mask is 255.255.255.0.

In your example 255.255.255.0

Gateway IP : If the Linksys router is the main IP router to connect your network to the Internet, then your Gateway IP is the same IP Address as the Linksys router. If you have another router handling your network's Internet connection, enter the IP Address of your main Internet router here instead.

Set this as appropriate.

Click the Apply button to save your changes.

Good luck...hope this helps!

If I understand you correctly you have 5 subnets which are segregated via 5 routers, each router is the first IP address for each subnet and the sebnets segregate with the 3 byte. The routers are all physically interconnected and you want to be able to route traffic between the subnets.

If you want to be able to route all traffic then you should just need entries like below, this is what i would expect to see on 192.168.5.1

Destination Source Gateway
192.168.1.x 192.168.5.x 192.168.1.1
192.168.2.x 192.168.5.x 192.168.2.1
192.168.3.x 192.168.5.x 192.168.3.1
192.168.4.x 192.168.5.x 192.168.4.1
192.168.5.x 192.168.x.x 192.168.5.1

This will allow the routers to redirect any traffic for the subnets, but only if it comes from within the subnet it controls. NB Adjust the 3rd byte as required, eg here is what it would look like on the 192.168.1.1 router

Destination Source Gateway
192.168.5.x 192.168.1.x 192.168.5.1
192.168.2.x 192.168.1.x 192.168.2.1
192.168.3.x 192.168.1.x 192.168.3.1
192.168.4.x 192.168.1.x 192.168.4.1
192.168.1.x 192.168.x.x 192.168.1.1


If you wanted to have restricted access for a few machines, say you are backing up servers that use x.x.x.12 on each subnet to each other, then you do something like

Destination Source Gateway
192.168.1.12 192.168.5.12 192.168.1.1
192.168.2.12 192.168.5.12 192.168.2.1
192.168.3.12 192.168.5.12 192.168.3.1
192.168.4.12 192.168.5.12 192.168.4.1
192.168.5.12 192.168.x.12 192.168.5.1

The exact set out will vary from router model to router model, many will require a specific return entry for each machine in the last example as they will not accept a wildcard followed by a specific.

Cannot get to the visio document. Somewhere along the line, all of these routers must connect to the Internet router on a common subnet. Either that or you have 5 DSL lines coming into your SOHO! That is where you will create the routes to each of those subnets, the GW address being the connecting router. Are all of these routers connected on a common subnet and isn't there a hub router? Contact me with more info.

Now I can see your drawing. There are two interfaces on the routers, yet you've listed only one, so I'm going to assume that the 192.168.x.x subnets are the server/clinet side of your routers. So in this case, here's how I would route, with a few assumptions:

In this instance, all routers connect to a hub on the other side, and they all exist on one subnet, 10.1.1.0/24. Using your example IPs from above, here would be the routing table to get from Router A to router B, Router A is 10.1.1.1 and router B is 10.1.1.2:

On router A:
IP route 192.168.10.0 255.255.255.0 10.1.1.2

On router B:
ip route 192.168.1.0 255.255.255.0 10.1.1.1

I am trying to do the exact same thing as you without much success. Did you get this resolved?