Virtualbox, slow upload speed using nat

Posted by user1622094 on Server Fault See other posts from Server Fault or by user1622094
Published on 2012-11-12T10:41:07Z Indexed on 2012/11/12 11:05 UTC
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Im running Virtualbox on a Ubuntu 12.04 server (host) and I'm running a Windows 7 as guest os. Im using the (virtual) Intel PRO/1000 MT network card.

I get good network performance for download using both nat and bridged network settings but upload speed is really slow using nat.

I have tied this on tow different servers, one brand new, and one a several years old, both gave the same result.

If you can explain this behavior or have ideas of further test I can perform please let me know.

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