Forbidden Local Network Access

Forbidden Local Network Access

am 06.06.2007 05:44:12 von Fred

Hi,

I am using VPN-1 SecureClient/SecureRemote on my WinXP Desktop.

When I am connected in my CentralOffice by SecureClient, I cann't have
local network access.

What I need to configure in my computer (userc DB or other file) to
have local network access while connected to my central office?

Thanks, Fred.

Re: Forbidden Local Network Access

am 06.06.2007 07:03:51 von roberson

In article <1181101452.703892.316500@q66g2000hsg.googlegroups.com>,
Fred wrote:

>I am using VPN-1 SecureClient/SecureRemote on my WinXP Desktop.

>When I am connected in my CentralOffice by SecureClient, I cann't have
>local network access.

>What I need to configure in my computer (userc DB or other file) to
>have local network access while connected to my central office?

I've never used SecureClient or anything else by the same vendor,
but I have seen the same issue with a completely different vendor,
Cisco. In the Cisco case, whether you can reach the local network
or not is something that is configured on the firewall you
are connecting to -- the remote device has control over whether
you can reach your local network.

This kind of situation is deliberate in IPSec, to allow security
administrators to enforce access policies designed to prevent third
parties from attacking the secure network by having control over your
PC and exploiting the PC's trust relationship with the secure network.
If your PC#1 trusts local PC#2, and PC#1 is connected to secure network
B.A.N.K, but PC#2 is under the live control of Evil Doctor Mumblebot
(because the client on PC#1 cannot shut down PC#2's internet access),
then the Evil Doctor can connect remotely to PC#2, use that to connect
to PC#1, and use PC#1 to connect to the secure network B.A.N.K as a
trusted user. To prevent this possibility, IPSec security gateways
can often be configured to force upon the client (PC#1) that the
client cannot talk to any other machine at the same time that it
is talking to the secure network.

Re: Forbidden Local Network Access

am 06.06.2007 08:55:20 von Mak

Walter Roberson wrote:
> In article <1181101452.703892.316500@q66g2000hsg.googlegroups.com>,
> Fred wrote:
>
>> I am using VPN-1 SecureClient/SecureRemote on my WinXP Desktop.
>
>> When I am connected in my CentralOffice by SecureClient, I cann't have
>> local network access.
>
>> What I need to configure in my computer (userc DB or other file) to
>> have local network access while connected to my central office?
>
> I've never used SecureClient or anything else by the same vendor,
> but I have seen the same issue with a completely different vendor,
> Cisco. In the Cisco case, whether you can reach the local network
> or not is something that is configured on the firewall you
> are connecting to -- the remote device has control over whether
> you can reach your local network.

exact same concept with checkpoint,
your client downloads a policy, defined by your admin each time you connect.

speak to your admin.
(and he will tell you the same thing robert is telling you )

M

Re: Forbidden Local Network Access

am 06.06.2007 15:13:03 von Fred

Walter and Mak,

You are right!

The existing policy makes with that all the local traffic also is
crypt with IPSec. Therefore I cann't communicate with none local host.
My Network Security Group does not have the interest to help me to
configure the local access, they understand that this would be one
security risk. But I would like to be connected and to be able to
print documents, for example, in my local net.

I need to discover a way to modify the policy that is downloaded in my
workstation so that the local traffic is not cript.

Thanks, Fred.

Re: Forbidden Local Network Access

am 06.06.2007 18:30:38 von rick

On Jun 6, 8:13 am, Fred wrote:
> Walter and Mak,
>
> You are right!
>
> The existing policy makes with that all the local traffic also is
> crypt with IPSec. Therefore I cann't communicate with none local host.
> My Network Security Group does not have the interest to help me to
> configure the local access, they understand that this would be one
> security risk. But I would like to be connected and to be able to
> print documents, for example, in my local net.
>
> I need to discover a way to modify the policy that is downloaded in my
> workstation so that the local traffic is not cript.
>
> Thanks, Fred.

As indicated, with Secureclient you will have to have your security
adminiistrator
modify the client policy to allow this. Part of the design is that you
are not allowed
to modify the policy. (The ability to enforce a desktop policy on a
client attached
to the corporate network is a major reason for implementing
Secureclient rather than
Secureremote).

It sounds like you have been informed that your company has a policy
that they
are not willing to modify. The best approach is to provide them with a
business case
of exactly what capabilities you need to allow you to do your job. I
suspect they will
not allow you to simply bypass the policy for the reasons outlined and
if you attempt
to subvert the policy your company wants you to use when attached to
their network
you may be subject to sanctions (up to termination of your
employment).