Routing question

[viafax999]

I have a verizon Westell 9100EM router at subnet address 192.168.1.1

Connected to one of the LAN ports of the Westell is a Dlink DIR 655 at subnet address 192.168.3.1

Connected to a second LAN port of the Westell is a Netgear WNDR3700 at subnet address 192.168.30.1

The netgear router is used mainly for media streaming both wirelessly and wired and I'd like to keep it that way so the traffic doesn't interfere with home pc to pc traffic that is on the Dlink segment.

However there is a NAS device connected to the USB port of the Netgear router that I would like to be able to access from an MCE pc on the dlink segment.

I'm assuming this should be possible by defining the correct static routes on the Dlink router, also maybe on the Westell router and possibly some changes in the Netgear FW rules.

Does anybody have any suggestions as to what changes I need to make and where to make this happen? or am I just dreaming that this is possible?

TIA  Peter

 Should have addedd

Dlink is a static address 192.168.1.254

Netgear is a static address 192.168.1.253

[jumpin68ny]

You may want to consider disabling NAT and make sure each of the routers are aware of the other networks through static routing.  .  No reason to keep NAT and then creating Firewall Rules.

[viafax999]

Can't disable nat on a dlink dir-655.

Did set up static routes on all the routers but still can't get between the subnets.  Try accessing a server on the 192.168.3 subnet from a pc on the 192.168.30 subnet and get no response.

Is there something else I'm meant to be doing in the firewals of the devices?

[jumpin68ny]

Why can't you disable NAT?

Can you ping the .1 address on all subnets from any of your subnets?

Can you ping the .254 and .253 address from the .1 .3 and .30 ?

Remember you are trying to ping a device through another NAT'd device.

You may need to set up firewall rules to allow inbound traffic into the .3 and .30 subnets.

[viafax999]

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@jumpin68ny wrote:

Why can't you disable NAT?

Can you ping the .1 address on all subnets from any of your subnets?

Can you ping the .254 and .253 address from the .1 .3 and .30 ?

Remember you are trying to ping a device through another NAT'd device.

You may need to set up firewall rules to allow inbound traffic into the .3 and .30 subnets.

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Why can't you disable NAT?

It's documented as a feature not available on the dir-655

I did disable it on the netgear

Can you ping the .1 address on all subnets from any of your subnets?

No

Can you ping the .254 and .253 address from the .1 .3 and .30 ?

Yes

You may need to set up firewall rules to allow inbound traffic into the .3 and .30 subnets.

I figured that is the issue, however I have no clue what FW rule to change.

[jumpin68ny]

First off the Westell 9100 should have a static route.  I have an actiontec so the following needs to be added to routing in advanced settings:

Destination 192.168.3.0

Netmask 255.255.255.0

Gateway 192.168.1.254

Then you need to add

Destination 192.168.30.0

Netmask 255.255.255.0

Gateway 192.168.1.253

From the dlink and netgear there should already be a default route that says: 

0.0.0.0 0.0.0.0 go to 192.168.1.254 or 1.253 

When you add this then from the netgear you should be able to ping all devices on the 192.168.1.x.

Similarly from the 192.168.1.x network you shoudl be able to ping 30.1.  You should also be able to ping any device on the 30.0 since you have disabled NAT.

Can you confirm this?