SSH timeouts from virtual Ubuntu workstation to bare metal servers in home network

[Hans Vos]

On 06/19/2012 05:08 PM, Hans Vos wrote:
> I currently have the following setup.
>
> - My PC (Windows 7) -> Virtual Box -> Ubuntu 12.04 desktop
> - Server 1 (Ubuntu 12.04 server)
> - Server 2 (Ubuntu 12.04 server)
>
> The virtual Ubuntu desktop is using a "Bridged Adapter" configuration.
> When I setup a SSH connection from my Ubuntu desktop to one of my Ubuntu
> servers I get a timeout after a while, even when the session is not
> idle. It happens after a few minutes even when something is happening in
> the terminal window. I get the following error message:
>
> "Timeout, server host.example.org not responding."
>
> On my Ubuntu desktop I've already put the following line in my
> ~/.ssh/config file but it doesn't help:
>
> "ServerAliveInterval 5"
>
> What might be the problem and how can I solve this?

The problem is a somewhat more persistent than previously noticed. It 
seems that my network connection drops every few minutes and restores 
itself after 20 seconds or so. I have no idea as to the exact cause. I 
switched to NAT networking instead of bridged and now the problem seems 
to have disappeared. Can anybody share some light on this and how I can 
get bridged networking to work again?

--
Kind regards,

Hans