RV042 Windows incompatibility HTTP Connections between Subnets without Internet access

[148784]

Hello, 

We are a company of the banking sector

We have two RV042 Router.

One of this Router (R1) is configured for restrict users without internet access. This router doesn´t internet connections, the Wan ports are blocked.

Router 1: restricted users

Router 1 IP Lan: 10.22.4.1/24   

Router 1 IP Subnet 1: 10.22.1.2/24 (For communication with Web Servers on Lan 10.22.1.0/24)

Pc1: 10.22.4.3/24

DNS: 10.22.4.51/24 (This DNS Server have an Internet connection through subnet 2)

The other router (R2) has an internet connection through the wan port for the access of the DNS Servers for respond to request of clients, and a web server in this subnet

Router 2:  Web Server´s LAN and Internet Connection for the DNS Server

Router 2 IP Lan: 10.22.1.1/24

Router 2 IP Subnet 2: 10.22.4.2/24 (For communication with restricted user on Lan 10.22.4.0/24)

Web Server: 10.22.1.60/24

We need to access the web server from the network restricted users.

From Linux Operating System, the access to web server its ok

But, from Windows Operating Systems, we can´t access to web server. Time Out

So, we think that there are some incompatibility between the Router RV042 and the windows operating systems 

On the website of microsoft, there is an article regarding an incompatibility issue with the RV042 which could help

http://support.microsoft.com/kb/934430

we copied a file attachment.

Thanks, sorry for bad English

[Kremena Ivanova]

Hi,

I assume you used the option Multiple Subnets for configuring the second subnet. I also assume DHCP server on each router is enabled. In order to route correctly, the 2 routers will need also configuration of static routes

R1: Destination 10.22.1.0/24 Gateway 10.22.4.2

R2: Destination 10.22.4.0/24 Gateway 10.22.1.2

Also, try disabling SPI in the Firewall settings.

Regards,

Kremena

[148784]

hello,

We are using the option of multiple subnets and we have a dhcp server locally.

We have communication between subnets without static routes. routers are connected through the LAN ports and configuring subnets, we do ping between the web server and pc1.

In fact, we make HTTP requests to the web server via ip address in the browser but not through dns.

For example, we come to the server through http://10.22.1.60, but not through http://prueba.com

We do ping prueba.com, then our local dhcp is working

[148784]

From Linux Operating System, the access to web server its ok

But, from Windows Operating Systems, we can´t access to web server. Time Out

So, we think that there are some incompatibility between the Router RV042 and the windows operating systems

[148784]

disabling SPI in the firewall does not work

[148784]

Update: When we activate the wan interface on Router 1 (restricted users), the http access to the web server through dns are successful in windows and Linux clients.

But we do not want to activate the wan interface.

It is a strange behavior of the RV042 router with http requests through dns with the interface wan disabled.

Again, if we use the linux operating system as a client, we can reach the web server through dns.

[148784]

Anyone can answer please?

[Kremena Ivanova]

Hi,

Have you also tested configuring static route?

I am asking that, because RV042 does not support VLANs and following that cannot do inter-VLAN routing. Configuring subnet with Multiple Subnet option is only giving access to this subnet to internet. Unless a static route is not configured as where this traffic to be routed in the LAN, the router itself normally will drop the packet.

If it works for you, this leads me to the thought that there is other routes that packets from LAN 10.22.1.0 to LAN 10.22.4.2 (and vice versa) are taking, but not necessarily the routers.

Here I can just give a direction of where to look, but if you think you checked all possibilities, it would be better to contact the support line. They will help as long as the device is under warranty.

Hereby the contacts:

http://www.cisco.com/c/en/us/support/web/tsd-cisco-small-business-support-center-contacts.html

Regards,

Kremena