We have many issues with this configuration.
1. The VPN client and VPN are using the same IP range.
Both VPN sites are in the same IP rangeA: You will not be able to do this
with a VPN connection if both subnets are using the same IP subnet. What you
are setting up is a LAN to LAN (also called ...
www.chicagotech.net/Q&A/vpn20.htm
2. It is better to use static IP on the server.
3. It is better to use windows server as DHCp server instead of
router. And why the DHCP server IP range is different from the LAN IP range.
4. I don't the default gateway.
--
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com
"Peter Herijgers" <(E-Mail Removed)> wrote in
message news:61336605-E68D-4C00-8871-(E-Mail Removed)...
>I have the following:
>
> One ADSL modem connected to one of the LAN ports of the server.
> DHCP of the ADSL modem assigns address 10.0.0.154 to the lan port.
> This lan port will be used to connect users to the internet.
>
> Ethernet adapter GAC:
> Connection-specific DNS Suffix . : lan
> DHCP Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
> IP Address. . . . . . . . . . . . : 10.0.0.154
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . :
> DHCP Server . . . . . . . . . . . : 192.168.1.254
> DNS Servers . . . . . . . . . . . : 192.168.0.1
>
> The other lan port on the server is connected to a router.
> All the computers in the office are connected to this router.
> The server assigns IP addresses to the connected computers by DHCP.
> Starting from 192.168.0.10 to 192.168.0.255
> The server has IP address 192.168.0.1
>
> Ethernet adapter LAC:
> Connection-specific DNS Suffix . :
> DHCP Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 192.168.0.1
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . :
> DNS Servers . . . . . . . . . . . : 192.168.0.1
>
> I want to test a VPN connection so I connect one laptop to the ADSL modem.
> The ADSL modem assignes IP address 10.0.0.153 to the laptop.
>
> To test the VPN connection I created a new connection on the laptop.
> Entered the IP address to with I want to connect. Using the IP address on
> which the server can be accessed by internet like 82.95.xxx.xxx.
> Users must login with username, password and domain.
> Security is standard.
> unchecked the 'default gateway' for the vpn connection.
>
> When I connect to the server the laptop gets an IP address from the server
> like 10.0.0.155, the server has IP address 10.0.0.156.
>
> PPP adapter RAS Server (Dial In) Interface:
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
> DHCP Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 10.0.0.156
> Subnet Mask . . . . . . . . . . . : 255.255.255.255
> Default Gateway . . . . . . . . . :
>
> I cannot ping 10.0.0.155 and 10.0.0.156 on the laptop.
> If I want to access the network the connection is very slow.
> Sometime it is not possible to create a connection between the laptop and
> the server. The server cannot be found or is not responding.
> VPN port 1701 and 1723 are open on both the server and ADSL modem.
>
> Here are the settings from the laptop:
>
> Ethernet-adapter LAN-connection:
> Connection-specific DNS Suffix . : lan
> DHCP Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
> IP-address. . . . . . . . . . . . . : 10.0.0.153
> Subnetmasker. . . . . . . . . . . : 255.255.255.0
> Standardgateway. . . . . . . . . :
> DHCP-server . . . . . . . . . . . : 192.168.1.254
> DNS-servers . . . . . . . . . . . : 192.168.1.254
>
> PPP-adapter server:
> WAN (PPP/SLIP) Interface
> DHCP Enabled:. . . . . . . . : no
> IP-address. . . . . . . . . . . . . : 10.0.0.155
> Subnetmasker. . . . . . . . . . . : 255.255.255.255
> Standardgateway. . . . . . . . . :
> DNS-servers . . . . . . . . . . . : 192.168.0.1
>
> Is this the correct methode to establish a VPN connection between a server
> and a laptop?
> How can I speed this up?
> Is this methode save to use on the internet?
> Any good books to read about VPN?
>
> Thanks in advance.
>
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