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Problem connecting VPN on Netgear DG834G

Posted on 2007-10-03
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Last Modified: 2009-01-11
Thank you for looking at this.
Just bought and installed a Netgear DG834G ADSL on dynamic IP from Swiss telecom provider. The client PC has been moved from Spain to Geneva, Switzerland.
Client machine is Win XP Pro SP2 runs NetScreen from Juniper Networks and connects to a fixed IP address Juniper Networks NetScreen-5GT ADSL.
when the client pc was based in spain on dynamic ISP ip address the Netscreen client software connected perfectly however now the client pc is in geneva with the new netgear DG834G ADSl Router I get errors and cant connect.
Client machine is on DHCP from the Netgear router, IP address 192.168.0.2 and I have created services to ports 1701, 1723, 500 for tcp and udp.
I then forwarded this service to the 192.168.0.2 address.
Error I get from the Netscreen log is:
10-04: 01:13:57.436 Failed to resolve interface to address 192.168.150.2.
10-04: 01:13:57.436 My Connections\New Connection - Error initiating manual connection.
10-04: 01:17:52.248 This is a  version of NetScreen-Remote.
10-04: 01:17:53.358 Failed to register for driver notifications.
10-04: 01:17:54.373 Filter table loaded.
10-04: 01:18:06.905 Failed to resolve interface to address 192.168.150.2.
10-04: 01:18:06.905 My Connections\New Connection - Error initiating manual connection.
Any help with this would be grately appreciated as this has now gone on for 3 days :-(.
Thank you in advance.
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Question by:SafeOutsource
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Expert Comment

by:NoodlesWIU
ID: 20010893
Im a little confused, why is it trying to connect to 192.168.50.2?  You stated your internal client is 192.168.0.2
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Expert Comment

by:Neadom Tucker
ID: 20010907
It looks like your on 2 different subnets.  Are you sure those are your IP addresses?
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Author Comment

by:SafeOutsource
ID: 20010968
Hi.
Thank you for the very prompt response, wow!
The subnet is 255.255.255.0 and I thought as long as the subnet was the same then it would connect even if the IP addresses are different.
The policy setup for the vpn has preshared keys and the lan where the server and Juniper Netscreen are based is on the 192.168.150.2 and thats the IP address that is setup in the vpn connection identity.
thanks a lot for your help.
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Expert Comment

by:NoodlesWIU
ID: 20010973
ah actually you want to have different octets from the outside than your internal NAT.
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Expert Comment

by:NoodlesWIU
ID: 20010979
IE  remote computer trying to VPN with an IP of 192.168.0.100 and the computer your trying to VPN into is using the same scheme of 192.168.0.X  will cause issues.

Set one of them to say 192.168.1.X scheme.
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Expert Comment

by:NoodlesWIU
ID: 20010988
If they are both the same scheme this type of VPN will choke every time.
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Expert Comment

by:NoodlesWIU
ID: 20010998
But im still having problems with the 192.168.50.2  as this is a NAT address.  your client should be connecting using a WAN IP.  do you know what his is?
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Author Comment

by:SafeOutsource
ID: 20011035
OK.
i will change scheme as you suggest and advise.
When I go to the fixed IP address I get the Juniper Firewall VPN login page.
I have 3 other pc´s that access with the same settings, different keys etc but all are set to look for and share keys with 192.168.150.2.
thanks for your help, much appreciated!
0
 

Author Comment

by:SafeOutsource
ID: 20013168
OK.
Apologies for delay. I am doing this via remote control.
The Client IP is now static 192.168.1.10, the subnet is 255.255.255.0
i still get the same error, unable to resolve interface to 192.168.150.2 whish is the juniper firewall in the other office.
Any help greatly appreciated, thanks
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Author Comment

by:SafeOutsource
ID: 20043188
HI.
Does anyone have any idea about this?
Netgear DG834G. Windows XP SP2, NetScreen Remoter VPN software going into Juniper Netscreen.
Other users connect OK, previously worked when based in Spain, now in Geneva, the only change being the router.
Thanks a lot Allan
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Author Comment

by:SafeOutsource
ID: 22397369
Solutionj never found. Suspect the "problem" is with the Double Firewall in the router.
Router changed afor other make/model and now working fine.
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Accepted Solution

by:
SafeOutsource earned 0 total points
ID: 22652028
Router changed and problem disappeared. Never received suitable suggestions.
Thanks to all who tried.
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