Re: Dynamips dot1q issue (quad nics) [Take 2]

Hi Jochen,

Thanks for the response.
As it turned out - I tried that but it made no difference.

I've installed debian now and everything seems to work perfectly. I'm
guessing there is something different in Ubuntu 12.04.

Cheers,

Shane

On Sat, Sep 1, 2012 at 12:45 PM, Jochen Bartl <jochen.bartl_at_gmail.com>wrote:

> Hi Shane,
>
> I recently had a conversation with someone on Twitter who was facing the
> same problem [1]. It seems like new Ubuntu releases and the Linux Kernel
> are using VLAN offloading.
>
> Just install the software "ethtool". With it you can display Ethernet
> properties of your NIC and it also allows you to change them.
>
> apt-get install ethtool
>
> Find out if VLAN offloading is enabled for eth0:
>
> ethtool -k eth0 | grep vlan-offl"
>
> Disable VLAN offloading on eth0:
>
> sudo ethtool -K eth0 rxvlan off && sudo ethtool -K eth0 txvlan off
>
>
> Regards,
>
> Jochen
>
>
> 1) https://twitter.com/BobMcCouch/status/240439382153236481

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Received on Sat Sep 01 2012 - 15:48:21 ART