Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I need to set the MTU to 9000 for my network devices, except for the BT Home Hub which is limited and cannot be configured.

9000 means I get 50MB/s instead of 11MB/s between the server and the NAS. But it means that certain sites fail when browsing the internet.

Is it possible to set the machine to speak 9000 to everything except the router?

share|improve this question

you might be able to ask him to change the MTU for specific devices, maybe if you use two cards it could be possible.

I am not at 100% certain. But what I am certain is that you are suppose to use 9600 MTU and usually that's the way the other devices in your home is suppose to work at.

share|improve this answer
Yeah, supposed to, but BT puts a gigabit port on their switch which defaults to 1500 and can't be configured... ¬.¬ – RoboJ1M Apr 25 '13 at 20:42

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.