[H-GEN] adsl help

Tony Nugent tony at linuxworks.com.au
Fri Feb 7 19:00:15 EST 2003


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On Sat Feb 08 2003 at 09:20, Tony Nugent wrote:

[ ... munch munch munch ... ]

>   pppoe is ppp-over-ethernet (an "encapsulation" protocol), and if
>   the box is acting as a gateway router for a lan, then mss clamping
>   with MSS is usually set at 1412 bytes (in its config file).  If
>   you are using ipip over adsl then it simply won't work well at all
>   unless mss is set even lower for that traffic.
> 
>   Classic example where this problem can bite:  doing nfs over an ip
>   tunnel, where that tunnel goes over an adsl connection.  Ouch :)

I also meant to add here that ppp itself is a encapsulation protocol
for sending network datagrams over serial links... and many people
here would have the experience of using mru/mtu values with it
fine-tune its behaviour.  pppoe just adds more mess to the overall
picture -- but hey, it works :)

Cheers
Tony

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