Cannot access internet after VPN connection

  • Thread starter Thread starter JohnC
  • Start date Start date
J

JohnC

After remotely connecting to our server via a VPN
connection, I'm no longer able to reach the internet.
Our setup is the office is on a T1, and at home I use a
router connected to a cable modem. Either connection
works fine by itself, but it appears that I can't use
both the VPN and internet connection at the same time.
Is there a workaround for this?
 
The reason for this behaviour is because the default gateway option for the
VPN connection is enabled.

Where to find the default gateway option?
Go to the properties of the VPN connection
Select "Network" tab
Select the TCP/IP properties
Select Advanced
You will find "Use default gateway from remote network" option.

When this option is checked, the VPN connection creates a route 0.0.0.0
pointing to the IP obtained from the VPN Server, this causes all traffic to
route through the new route. If you want to access the internet from your
VPN connection, you have the followign options:
- Configure additional settings in the internet explorer,
using proxy server. This is a secure approach and is generally used by
larger organizations.
- A straight forward and simple option would be to uncheck the
default gateway option [split tunneling]. This will provide you what you
need but is nto a secure approach.
 
I've tried this and it doesn't work. The VPN connects,
and logs in but then it won't find the server so I can
map a drive. I've tried using the UNC server name as
well as it's IP address. Can't be found if I turn off
the "use gateway from remote network" option. The remote
user does indeed retain his internet route, though.
-----Original Message-----
The reason for this behaviour is because the default gateway option for the
VPN connection is enabled.

Where to find the default gateway option?
Go to the properties of the VPN connection
Select "Network" tab
Select the TCP/IP properties
Select Advanced
You will find "Use default gateway from remote network" option.

When this option is checked, the VPN connection creates a route 0.0.0.0
pointing to the IP obtained from the VPN Server, this causes all traffic to
route through the new route. If you want to access the internet from your
VPN connection, you have the followign options:
- Configure additional settings in the internet explorer,
using proxy server. This is a secure approach and is generally used by
larger organizations.
- A straight forward and simple option would be to uncheck the
default gateway option [split tunneling]. This will provide you what you
need but is nto a secure approach.

--
Thanks,
Sharoon
---------------------------------------------------------
This posting is provided "AS IS" with no warranties, and confers no rights.

After remotely connecting to our server via a VPN
connection, I'm no longer able to reach the internet.
Our setup is the office is on a T1, and at home I use a
router connected to a cable modem. Either connection
works fine by itself, but it appears that I can't use
both the VPN and internet connection at the same time.
Is there a workaround for this?
Click to expand...


.
Click to expand...
 
Basically, you can't have your cake and eat it too! Your default gateway
has to point to either the VPN connection or your Internet connection. If
you clear the "use default gateway" box, your default gateway is still out
to the Internet. Normally that isn't a problem, because you get a subnet
route to the VPN server's subnet.

If you are trying to access machines in some other subnet on the LAN,
you will need to somehow supply extra routing to the remote client. See KB
254231 .

JohnC said:
I've tried this and it doesn't work. The VPN connects,
and logs in but then it won't find the server so I can
map a drive. I've tried using the UNC server name as
well as it's IP address. Can't be found if I turn off
the "use gateway from remote network" option. The remote
user does indeed retain his internet route, though.
-----Original Message-----
The reason for this behaviour is because the default gateway option for the
VPN connection is enabled.

Where to find the default gateway option?
Go to the properties of the VPN connection
Select "Network" tab
Select the TCP/IP properties
Select Advanced
You will find "Use default gateway from remote network" option.

When this option is checked, the VPN connection creates a route 0.0.0.0
pointing to the IP obtained from the VPN Server, this causes all traffic to
route through the new route. If you want to access the internet from your
VPN connection, you have the followign options:
- Configure additional settings in the internet explorer,
using proxy server. This is a secure approach and is generally used by
larger organizations.
- A straight forward and simple option would be to uncheck the
default gateway option [split tunneling]. This will provide you what you
need but is nto a secure approach.

--
Thanks,
Sharoon
---------------------------------------------------------
This posting is provided "AS IS" with no warranties, and confers no rights.

After remotely connecting to our server via a VPN
connection, I'm no longer able to reach the internet.
Our setup is the office is on a T1, and at home I use a
router connected to a cable modem. Either connection
works fine by itself, but it appears that I can't use
both the VPN and internet connection at the same time.
Is there a workaround for this?
Click to expand...


.
Click to expand...
Click to expand...
 
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