Internet Connections thru VPN ?

Internet Connections thru VPN ?

Post by Tom Celic » Thu, 14 Nov 2002 01:20:21



Problem:  Users cannot get access to the internet, when connected thru VPN.

Hello, our users can connect remotely onto our corporate lan thru a VPN
connection and can get access to resources in the Local Corporate LAN.  We
are running a Win2K environment and our RAS is running VPN.  And a valid IP
Pool is provided and the correct  gateway is configured on the RAS Server.

Question 1 : Can RAS VPN be configured to allow internet access thru the vpn
connection?
Question 2 : How do I configure RAS VPN to provide Internet Access thru the
VPN connection?

Here is a copy of  IPConfig from a RAS VPN Connected Client

PPP adapter CorpVPN:

        Connection-specific DNS Suffix  . :
        Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
        Physical Address. . . . . . . . . : 00-53-45-00-00-00
        Dhcp Enabled. . . . . . . . . . . : No
        IP Address. . . . . . . . . . . . : 192.168.4.164
        Subnet Mask . . . . . . . . . . . : 255.255.255.255
        Default Gateway . . . . . . . . . : 192.168.4.164
        DNS Servers . . . . . . . . . . . : 192.168.4.183
                                            192.168.4.184

C:\Program Files\Support Tools>

** Default Gateway configured on RAS VPN Server is 192.168.2.254 **

Thanks in Advance
-Tom

 
 
 

Internet Connections thru VPN ?

Post by Bill Gran » Thu, 14 Nov 2002 10:52:05


  That should work as long as your Internet router knows about the remote
subnet.  The packets should reach the Internet router by default routing.
When packets come back to this router from the Internet with 192.168.4
addresses, it needs to know it can reach that subnet via the RRAS server.


Quote:> Problem:  Users cannot get access to the internet, when connected thru
VPN.

> Hello, our users can connect remotely onto our corporate lan thru a VPN
> connection and can get access to resources in the Local Corporate LAN.  We
> are running a Win2K environment and our RAS is running VPN.  And a valid
IP
> Pool is provided and the correct  gateway is configured on the RAS Server.

> Question 1 : Can RAS VPN be configured to allow internet access thru the
vpn
> connection?
> Question 2 : How do I configure RAS VPN to provide Internet Access thru
the
> VPN connection?

> Here is a copy of  IPConfig from a RAS VPN Connected Client

> PPP adapter CorpVPN:

>         Connection-specific DNS Suffix  . :
>         Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
>         Physical Address. . . . . . . . . : 00-53-45-00-00-00
>         Dhcp Enabled. . . . . . . . . . . : No
>         IP Address. . . . . . . . . . . . : 192.168.4.164
>         Subnet Mask . . . . . . . . . . . : 255.255.255.255
>         Default Gateway . . . . . . . . . : 192.168.4.164
>         DNS Servers . . . . . . . . . . . : 192.168.4.183
>                                             192.168.4.184

> C:\Program Files\Support Tools>

> ** Default Gateway configured on RAS VPN Server is 192.168.2.254 **

> Thanks in Advance
> -Tom


 
 
 

Internet Connections thru VPN ?

Post by RonDe » Tue, 26 Nov 2002 12:39:16


Tom,

I was having similar issues when we first went to W2K....we use MSN Instant
Messenger whenever we can to assist people on the road, and everytime
someone would VPN into the network, they would drop off of IM.  The is
because they were being provided a "new" IP address, subnet, and
gateway(from the internal network), but the RAS server was purposely not
allowing VPN clients to get back out to the Internet.  This is actually a
pretty easy fix...you can edit the VPN connector in the Network and Dialup
Connections.  You just need to uncheck the box for "Use Default Gateway on
Remote Network".

To do this, right-click the VPN connection (on the client machine, in
Network and Dialup Connections), and select properties.  Go to the
Networking Tab, highlight Internet Protocol (TCP/IP), click on properties,
then click on the Advanced button....you should see a box for "Use Default
Gateway on Remote Network)....uncheck this box, then , click "OK" all the
way out of the properties....this will allow your users to maintain their
Internet connection(and their default gateway) while still having access to
your network

Ron D.


>   That should work as long as your Internet router knows about the remote
> subnet.  The packets should reach the Internet router by default routing.
> When packets come back to this router from the Internet with 192.168.4
> addresses, it needs to know it can reach that subnet via the RRAS server.



> > Problem:  Users cannot get access to the internet, when connected thru
> VPN.

> > Hello, our users can connect remotely onto our corporate lan thru a VPN
> > connection and can get access to resources in the Local Corporate LAN.
We
> > are running a Win2K environment and our RAS is running VPN.  And a valid
> IP
> > Pool is provided and the correct  gateway is configured on the RAS
Server.

> > Question 1 : Can RAS VPN be configured to allow internet access thru the
> vpn
> > connection?
> > Question 2 : How do I configure RAS VPN to provide Internet Access thru
> the
> > VPN connection?

> > Here is a copy of  IPConfig from a RAS VPN Connected Client

> > PPP adapter CorpVPN:

> >         Connection-specific DNS Suffix  . :
> >         Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
> >         Physical Address. . . . . . . . . : 00-53-45-00-00-00
> >         Dhcp Enabled. . . . . . . . . . . : No
> >         IP Address. . . . . . . . . . . . : 192.168.4.164
> >         Subnet Mask . . . . . . . . . . . : 255.255.255.255
> >         Default Gateway . . . . . . . . . : 192.168.4.164
> >         DNS Servers . . . . . . . . . . . : 192.168.4.183
> >                                             192.168.4.184

> > C:\Program Files\Support Tools>

> > ** Default Gateway configured on RAS VPN Server is 192.168.2.254 **

> > Thanks in Advance
> > -Tom

 
 
 

1. internet access thru VPN via cable modem

howdy.  If I have a use connected to the VPN thru the internet via a cable
modem and they access an outside web site (such as yahoo or eBay) are they
accessing it thru thier own connection or are they going thru the VPN and
then to the internet?

if it is going thru the VPN first has anyone seen where this is has a big
inpact on band width (the most people that I will ever have connected to the
VPN is 5 or so)

thanks,

-bernie
www.bernieberg.com

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