Re: ppp server windows XP Pro

Tech-Archive recommends: Fix windows errors by optimizing your registry

From: Robert L [MS-MVP] (noreply_at_hotmail.com)
Date: 09/21/04


Date: Tue, 21 Sep 2004 14:20:00 -0500

quoted from http://www.ChicagoTech.net
Can't access the Internet while using VPN

Symptom: after establishing a VPN connection, you may not be able to access
the Internet because the VPN takes over your existing connection and all
traffic to use the VPN default gateway on the remote network. The remote
network may not allow VPN clients to access the Internet via their gateway.

Resolutions:
1) If you don't need to access the entire VPN resources, disable the "use
default gateway on remote network" option in the properties of the VPN
connection. To do that, go to VPN
Connection->Properties->Network->TCP/IP->Properties->Advanced-, uncheck
"Use default gateway on Remote Network".
2) Edit route table manually if you know how to or check routing page on
this web site.
3) For the security reason, some firewall/routers like Cisco PIX do not
allow access the Internet after establishing the VPN and you cannot modify
the routing table. You may setup split-tunnel.

-- 
For more and other information, go to  http://www.ChicagoTech.net
Don't send e-mail or reply to me except you need consulting services. 
Posting on MS newsgroup will benefit all readers and you may get more help.
Robert Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on 
http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.
"Nikos Haliassos" <n.haliassos@tiscalinet.it> wrote in message 
news:a99fd604.0409210906.204d4524@posting.google.com...
> Hi, everybody
>
> I have a XP Pro machine(server) connected to internet through ADSL
> modem. XP machine has ip 10.0.0.2 on this interface and modem
> (10.0.0.138) acts as a gateway/NAT to internet.
> I also have a laptop (XP Pro) connected to the XP box through
> different NIC and addresses 192.168.0.1 (Server) - 192.168.0.2
> (laptop). The laptop is accessing internet through ICS.
>
> I have setup the ppp server on the "server" machine since i need to
> dialin with the laptop when i am away. Infact the connection is
> negotiated ok and server-laptop get 192.168.x.x addresses on
> 255.255.255.255 mask and i am able to access folders and files on
> server. Also laptop has "checked the use default gateway on remote
> system".
>
> Could you please help me access internet as well? I am able to ping
> modem (10.0.0.138) from laptop when i establish the ppp connection.
>
> In this scenario what should the gateway of the ppp connection be to
> correctly forward packets to laptop? My XP (server) routing table
> showes that the ppp interface (for example 192.168.0.3 subnet
> 255.255.255.255) has as gateway 127.0.0.1. Is this correct?
>
> THank you for your help
> Nik 


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