Three interfaces on the same network


I want three interfaces on the same network.

For separate networks I know how it works but on the same network, the route
seems wrong.

It takes the first interface as default an thats the only card that is working.

How do I configure the interfaces file?

Who is Participating?
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.

Presumably the desire for three interfaces on the same network is increased bandwidth or availability. That can be done, but not by simply attaching each of the NICs to the same network. You'll need to configure a bonding interface and make these NIC a part of it (see the networking/bonding.txt in the kernel documentation). And you'll need to be connecting to a switch that's compatible with the Linux bonding driver.

The alternative to bonding the NICs is to use trunking capable NIC's and create a 3x VLAN trunk to a compatible switch.

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
Linux Networking

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.