Bypass VPN?

19 Sep 2006 9:08 PM

Dewdman42

Hello all, I am hoping there is a solution to my dilemna

Problem: Company VPN client runs on my home computer and gets me into
company network, but unfortunately blocks all attempts to access
network resources on my local home network. All internet access has to

also go through their proxy.

I have limited knowledge of the way XP ethernet devices and drivers
work, but it seems like the VPN client creates a new virtual device
that takes over so that all network requests have to go through it
instead of directly to my network device.

So....

1 - Is it possible for me to setup routing tables or the like so that
only network traffic between my company's intranet and myself go
through the VPN, while everything else goes directly to my ethernet
device to reach my home network and indeed everything else on the
internet?

2 - If no to #1, is it possible for me to install some kind of virtual
ethernet device that wraps around my actual hardware ethernet adapter,
so that somehow the VPN will take control only of that virtual one, and

leave the underlying one alone or something of this nature.

An suggestions are welcome here. Thanks in advance

19 Sep 2006 9:29 PM

BobC

On 19 Sep 2006 14:08:13 -0700, Dewdman42 wrote:

> Hello all, I am hoping there is a solution to my dilemna
>

Look for a default gateway setting in the vpn client configuration and
disable the setting if set to use remote gateway.

19 Sep 2006 9:41 PM

Sooner Al [MVP]

In addition to BobC's comments keep in mind this may be a server side
configurable that you can't override on the client. I do that with OpenVPN,
ie. force all client traffic through the VPN tunnel. Check with network
administrators at work about this. More than likely they set up your VPN
this way as a security precaution so untrusted internet traffic would not be
routed to the work network through the VPN tunnel...

--

Al Jarvi (MS-MVP Windows Networking)

Please post *ALL* questions and replies to the news group for the
mutual benefit of all of us...
The MS-MVP Program - http://mvp.support.microsoft.com
This posting is provided "AS IS" with no warranties, and confers no
rights...

Show quoteHide quote

"Dewdman42" <dewdma***@gmail.com> wrote in message
news:1158700092.919034.110940@e3g2000cwe.googlegroups.com...
> Hello all, I am hoping there is a solution to my dilemna
>
> Problem: Company VPN client runs on my home computer and gets me into
> company network, but unfortunately blocks all attempts to access
> network resources on my local home network. All internet access has to
>
> also go through their proxy.
>
>
> I have limited knowledge of the way XP ethernet devices and drivers
> work, but it seems like the VPN client creates a new virtual device
> that takes over so that all network requests have to go through it
> instead of directly to my network device.
>
>
> So....
>
>
> 1 - Is it possible for me to setup routing tables or the like so that
> only network traffic between my company's intranet and myself go
> through the VPN, while everything else goes directly to my ethernet
> device to reach my home network and indeed everything else on the
> internet?
>
>
> 2 - If no to #1, is it possible for me to install some kind of virtual
> ethernet device that wraps around my actual hardware ethernet adapter,
> so that somehow the VPN will take control only of that virtual one, and
>
> leave the underlying one alone or something of this nature.
>
>
> An suggestions are welcome here. Thanks in advance
>

20 Sep 2006 1:35 AM

Dewdman42

I have no such ability to change the gateway. We're using cisco VPN.
They are intentionally blocking it. What if I install a 2nd ethernet
adapter? There are two main reasons I want to do this. Mainly, I
cannot print to my own home network printer when I am VPN'd in to work.
You think they care in IS? No they don't. If I want to print I have
to find some other way to get around it. Additionally, I'm unable to
connect to my personal IMAP server. I don't really care if my web
surfing goes through their proxy or not.

20 Sep 2006 6:41 AM

gutter_aid

I also have limited knowledge with this and don't really have an
answer. But I can access local resources and at the same time use a
VPN. Here is my setup:

Cisco VPN installed on laptop
Cisco VPN installed on desktop
Laptop and Desktop connected to Linksys WRT54G Router
Router connected to Cable Modem

I am currently running the VPN on the laptop, but not the desktop. The
desktop can access ISP services that aren't available when I'm running
a VPN. The laptop can do a Remote Desktop to my computer at work via
the VPN, and at the same time do a Remote Desktop and file sharing to
my home desktop.

So it seems my laptop is able to access local resources and also access
my work's network via VPN. My local network has IP addresses like
192.168.1.xxx. Maybe the VPN is detecting these addresses and letting
that traffic through without encrypting it? In that case there could
be a way to configure the VPN to make exceptions. It could be the VPN
just "knows" about the 192.168.1.xxx addresses (since these are common)
and doesn't allow you to program exceptions. Or maybe there is another
piece of software doing the filtering before the VPN?

Dan