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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?

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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.

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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
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