Set Default Gateway With Bat File

How does one set the default gateway for all NIC's with a bat file?
portillosjohnAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Steve KnightIT ConsultancyCommented:
Is this fixed addresses then rather than DHCP allocated?

If it is temporary you can remove the default route and point it elsewhere using:

route delete 0.0.0.0
route add 0.0.0.0 mask 0.0.0.0 x.x.x.x

steve
0
Steve KnightIT ConsultancyCommented:
And you would normally only want one default gateway, can you explain please?
0
portillosjohnAuthor Commented:
I only want one default gateway. Its just that the nics are named differently on the machines that I will be using the script on.
0
Steve KnightIT ConsultancyCommented:
You can do it using netsh.  If you do

netsh dump > x.txt
and have a look at x.txt it will give you an idea of the commands.

e.g.

netsh interface ipv4 delete route prefix=0.0.0.0/0 interface="Local Area Connection"
netsh interface ipv4 add route prefix=0.0.0.0/0 interface="Local Area Connection" nexthop=x.x.x.x publish=Yes

Steve
0
Steve KnightIT ConsultancyCommented:
I meant to say before, getting the interface that is the 'right' one can be difficult, since which one would you pick manually and how - you could have two or more active NIC's, wired, wireless, a couple of disabled ones, some virtual NIC's for VMWare, a couple of VPN connections etc...

netsh interface ipv4 show interfaces | find " connected" | find /v /i "Loopback"

Above would narrow search down a little to connected interfaces.  That could then be used to get the name and therefore the one to use in the previous netsh commands:

@echo off
Set Gateway=x.x.x.x
for /f "tokens=4*" %%a in ('netsh interface ipv4 show interfaces ^| find " connected" ^| find /v /i "Loopback"') do Set NIC=%%b
netsh interface ipv4 delete route prefix=0.0.0.0/0 interface="%nic%"
netsh interface ipv4 add route prefix=0.0.0.0/0 interface="%nic%" nexthop=%gateway% publish=Yes
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft DOS

From novice to tech pro — start learning today.