[ubuntu-uk] (UK) Virginmedia mobile internet- Troubles with yahoo and google sign in using Virginmedia mobile internet dongle

[Jonathon Fernyhough]

2009/11/27 alan c <aeclist at candt.waitrose.com>:
> Question:
> If I change the MTU value, do you know if, if /when I change it back
> to its original value later, the system will properly revert to the
> original settings? That is, does anything irreversible happen
> according to MTU settings?
>
> Might be a strange question, but the laptop is not my own so I am
> trying to avoid doing stuff that I could not put back as it was.
>
> tia

The MTU change is non-persistent; when the connection is remade the
default setting is used (in most cases 1500). You can even try it with
your wireless if you want - just replace ppp0 with wlan0 (or similar).
As soon as you reconnect to the wireless network the setting goes back
to normal; you can check this with $ ifconfig.

Jonathon