Virtualbox + IPv6

Gert Doering gert at
Fri Feb 15 18:55:07 CET 2013


On Fri, Feb 15, 2013 at 09:48:25AM -0500, Matthew Huff wrote:
> As I'm dealing with a possible VMWare rollout, do you have any details? Was it the e1000, VXNET2, or VXNET3 driver? And what
> OS/version?

The box in question was using a fairly oldish linux version (2.6.18 from
CentOS 5.8), and the e1000 driver.

So I'm not sure if that applies to anyone else, but *if* you run into
weird "IPv4 is fast, IPv6 is slow" performance issues, try turning off
tso with ethtool, and see whether it changes anything (for new connections)
- if not, it's not TSO :)

Gert Doering
        -- NetMaster
have you enabled IPv6 on something today...?

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