Windows 7 slow in accessing local server

[djstoneage]

Hi all

I am having trouble with my openvpn network configuration. All my windows 7 machine on the network is having problem browsing files from the local server. ping is over 200ms, however all the windows xp machine on the network has got no problem accessing the local file server ping is under 20ms

Openvpn server is linux.

When i stop openvpn everything works fine. windows 7 machine is able to access local file server normally. but without openvpn i am unable to access my fileserver in the main office in london. I am in malaysia

My current configuration

Modem > Firewall server -> switch ->computers
->Openvpn server

Code: Select all

client
dev tap
proto udp
remote vpn1.bmtfm.com 1194
remote vpn2.bmtfm.com 1194
remote vpn3.bmtfm.com 1194
resolv-retry infinite
nobind
user nobody
group nobody
persist-key
persist-tun
pkcs12 certs/klvpn.p12
askpass certs/cert-pass
ns-cert-type server
auth-user-pass certs/user-pass
comp-lzo
verb 3

Any help is appreciated

[Mimiko]

When i stop openvpn everything works fine. windows 7 machine is able to access local file server normally. but without openvpn i am unable to access my fileserver in the main office in london.

How you can access fileserver normally without VPN if you are not in London?

Describe the infrstructure more detailed, where and what is placed.

[djstoneage]

Mimiko thanks for responding

Here's the infrastructure

I am currently located in Malaysia and we have another office in London.

Our previous setup where we have individual client for each computer. User will have to log in everytime they want to access london file server.
The setup was Modem > Router > Switch > user pc


The new setup
Modem > Firewall server > Switch > user pc
> local filer server

with the new setup user pc do not have to individually sign on to VPN, the problem with this is all windows 7 machine sees the local file server as though it is in london. it is very slow to access any files on the local server. But it is perfectly fine on windows xp machines.

If i disable openvpn i am unable to access the file server in london, but my connection to my local server on windows 7 becomes normal. As soon as i enable it again it will be slow again.


Does that clear your doubt?

[Mimiko]

Not really. Could you draw a sketch and attach here?
Show server's config. Routing tables. Logs.

[janjust]

sounds like a routing/bridging issue - without seeing your server config file it will be impossible to tell.

what kind of host is acting as the openvpn client for your network in malaysia? and what kind of host is acting as openvpn server?

[djstoneage]

This is the route table

Code: Select all

===========================================================================
Interface List
 13...bc 30 5b cf a1 63 ......Broadcom NetXtreme 57xx Gigabit Controller
  1...........................Software Loopback Interface 1
 12...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
 11...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0   10.143.169.254   10.143.169.108    266
     10.143.160.0    255.255.240.0         On-link    10.143.169.108    266
   10.143.169.108  255.255.255.255         On-link    10.143.169.108    266
   10.143.175.255  255.255.255.255         On-link    10.143.169.108    266
        127.0.0.0        255.0.0.0         On-link         127.0.0.1    306
        127.0.0.1  255.255.255.255         On-link         127.0.0.1    306
  127.255.255.255  255.255.255.255         On-link         127.0.0.1    306
        224.0.0.0        240.0.0.0         On-link         127.0.0.1    306
        224.0.0.0        240.0.0.0         On-link    10.143.169.108    266
  255.255.255.255  255.255.255.255         On-link         127.0.0.1    306
  255.255.255.255  255.255.255.255         On-link    10.143.169.108    266
===========================================================================
Persistent Routes:
  None

IPv6 Route Table
===========================================================================
Active Routes:
 If Metric Network Destination      Gateway
 12     58 ::/0                     On-link
  1    306 ::1/128                  On-link
 12     58 2001::/32                On-link
 12    306 2001:0:4137:9e76:203a:97d5:5074:6fa6/128
                                    On-link
 12    306 fe80::/64                On-link
 12    306 fe80::203a:97d5:5074:6fa6/128
                                    On-link
  1    306 ff00::/8                 On-link
 12    306 ff00::/8                 On-link
===========================================================================
Persistent Routes:
  None

This is the network configuration
http://gallery.me.com/djstoneage#100059/Network

[Mimiko]

From diagram, where the file server is located? On same computer where is OpenVPN server?

Could you show OpenVPN server config file? Does you use bridging mode?

Does you network switch have any filtering capabilities?

[djstoneage]

The file server is where the User PC in blue is. the server openvpn conf file is above right?

[Mimiko]

That coinfig file is for OpenVPN client.
Does the network switch have filter capabilities?

[djstoneage]

I am not sure if the network switch has a filtering capability. But just to make it clear, inidividual machine's do not use a VPN client the entire network is.

[Mimiko]

Will you show config file from OpenVPN server?

Try using on OpenVPN client some traffic sniffer to see, what packets are flooding the network. Normally OpenVPN client on some computer in network does not slow down file server access of other computers to another computer in network, especialy differentiate between Windows XP and Windows 7.