Static route question

[Schoolies]

I want to setup the following subnets:

Subnet 1 - Router IP - 10.0.0.3
Subnet 2 - Router IP - 192.168.0.3

The two routers are both Linksys MR814 and in their "Static Route" configuration menu, there are 4 options:

Destination IP Address
IP Subnet Mask
Gateway IP Address
Metric

On the 10.0.0.3 router I had entered static route:
Destin. IP: 192.168.0.3
Mask: 255.255.255.0
Gateway IP: 10.0.0.3
Metric: 1

This is not working and I'm sure it is completely wrong but I'm having a hard time finding documentation on setting these static routes up. It will not let me ping from the 10.0.0.3 address to 192.168.0.3.

I know I have to setup a static route on both routers and I know I can use RIP but this is all for tests purposes... to experiment and learn.

Thanks!

 

[Garion]

You use static routes when you want to tell a router how to send traffic to another subnet through another router. The two routers have to be on a common IP network - That is, one has to be 10.0.0.x and the other 10.0.0.y.

The "typical" way this is done is to have two routers plugged into a common switch, both having an IP address on the same subnet. Each router has a unique set of subnets behind it, and you need to configure the two routers so they point at each other for the subnets that can be reached by each.

You're close to putting in the right info, just don't have it exactly.

Example: you are trying to configure the 10.0.0.3 router to reach the subnet 192.168.100.0 witha 255.255.255.0 mask by going through the next hop of 192.168.0.3. The information you'd need would be:

Destination IP address: 192.168.100.0
IP Subnet Mask: 255.255.255.0
Gateway IP: 192.168.0.3
Metric: 1 (1 is fine, not really used much)

Unfortunately, you seem to have a problem with your configs - You have two different routers on two totally different IP addresses. If two routers need to be able to send traffic to each other, they have to have one interface on the same subnet. Right now, you have them on two subnets, which won't ever work.

Perhaps this doesn't make sense to me because I'm not sure how your network is laid out (what is plugged into what) and what you're trying to accomplish. Describe this more and we'll figure it out.

- G

 

[Schoolies]

Thanks Garion,

I think you pretty much explained it.

Someone gave me a router a couple of days ago and I figured I'd test out the static route features... see if I was smart enough to figure it out... apparently not.

What I wanted to do was to have some computers on the 10.0.0.0 network and some on the 192.168.0.0 and allow them to send traffic through to each other. I thought you could do this with the routes.

What I have right now is both routers going to a switch. The internet is not important in this case, i'm just worried about the traffic passing through the routers.

So there would be no way to send traffic between those two subnets?

 

[Fuzznuts]

if you can get one of the routers on both subnets youll be able to route between them you could do this by adding a secondary ip to one of the routers then apply your routes that way. dirty but it would work

i.e router 1 IP 1 = 10.0.0.3 IP 2 = 192.168.0.254

then on router 2 add a static route for the 10.0.0.0 network over 192.168.0.254
then on router 1 add a static route back to the 192.168.0.0 over 10.0.0.3
this will work but it depends on wether or not your routers
a) have mulitple interfaces / cards
b) if the router has 1 interface will it allow secondary IP's on the one interface.

if they are cheap things they may well just throw a wobbler and do nothing

 

[Schoolies]

Good info.

Thanks guys.

 

[Saltin]

You can do what you want to do with just two routers. Use the WAN port on each router to create a third, common subnet between the two routers (crossover ethernet for connection generally, if the WAN ports switch).
Make sure they are routing and not doing NAT.
If all you want to do is test build routes, that would be a good way to try it.

Edit : Hey it's my three year anniversary at AT. Hardly post at all anymore, what a coincidince!