On 08/20/08 06:40 pm, Pierre Jelenc wrote:
> Dave Yeo writes:
>> 576 is/was the default, see rfc879
>> (http://www.faqs.org/rfcs/rfc879.html). Your problem is probably that a
>> router, perhaps yours, perhaps at your ISP has its mtu set smaller then
>> 1500 so with your mtu set at 1500 you were getting fragmentation.
>> Larger numbers will give you better speed with a slight loss in
>> responsiveness.
>> Another number that you might try is 1492, which is the default for
>> PPPOE. 1500 is the default for ethernet.
>
> Ah, since I do use PPPoE that could be it. I changed it and we'll see. The
> router's docs do not mention anything about setting a different mtu, just
> that it accepts 100 to 1500.
>
> Pierre
>

You can try entering different values on the cmd line and in between try
pinging something like google.com and watch the results. Not sure if
this will tell you anything or not but might be worth trying.
Dave