How do we modify TCP/IP from commandline to modify DNS servers for an VPN specific connection?

Posted on 2010-01-11
Medium Priority
Last Modified: 2013-11-16
We are testing with the VPN Checkpoint FW client. When we connect to the VPN the FW/VPN module assigns an IP to the client computer that whant to remote in. This IP is configured those settings are configured at the firwall level for the VPN.

The problem is that no DNS can be configured when setting up the VPN TCP/IP at the firewall level. Running a quick "ipconfig/all" once the VPN client authenticates we see that the PC gets an IP and a gateway but no DNS are entered.

I was wondering if we could run some command line so the TCP/IP for that particular connection can be modified and the DNS servers can be added.

I am not sure if that is possible or if I was clear in my question. Please let me know if not.

Question by:llarava
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
LVL 16

Expert Comment

ID: 26287596

once you get the VPN connection then it will use your previous DNS ...that was available before the VPN ..

but yes it can be ...and the following commands used to change from CLI

to change IP and default gateway:
netsh int ip set address "your interface" static 1
to change DNS:
netsh int ip set dns "your interface" static primary

your interface may: local area connection or local area connection 2 or wireless or the VPN interface ..

this apeears by ipconfig /all  

Accepted Solution

predragpetrovic earned 2000 total points
ID: 26296048

do you use "Route all traffic through gateway" ? - if you are using this option then no DNS servers can be used or configured simply because all traffic will be routed through the gateway (not even client local subnet DNS servers).

if you are not using the given option the workstation will continue to use locally defined DNS servers, but this depends of the policy. Scripting these options (netsh ...) will not help you if the first scenario is being used. Can you give more details regarding your vpn setup ?


Featured Post

Simple, centralized multimedia control

Watch and learn to see how ATEN provided an easy and effective way for three jointly-owned pubs to control the 60 televisions located across their three venues utilizing the ATEN Control System, Modular Matrix Switch and HDBaseT extenders.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

There are many software programs on offer that will claim to magically speed up your computer. The best advice I can give you is to avoid them like the plague, because they will often cause far more problems than they solve. Try some of these "do it…
In the absence of a fully-fledged GPO Management product like AGPM, the script in this article will provide you with a simple way to watch the domain (or a select OU) for GPOs changes and automatically take backups when policies are added, removed o…
This Micro Tutorial will give you a basic overview of Windows DVD Burner through its features and interface. This will be demonstrated using Windows 7 operating system.
With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…
Suggested Courses

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question