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Lourdes Jones <[EMAIL PROTECTED]> wrote:
>
> As far as I understand it, ethernet device MTU - 8 = MTU of PPPoE. So
> setting both of these items to match will still produce fragmented packets
> which seems to be the likely cause of your stalls.
>
> Have you tried setting eth0 1500, ppp0 1492, eth1 1492?
That sets things up on the masq box, but there is yet another ethernet
interface, that of the masq CLIENT, which would also need to be set to
1492. This would keep the client from sending packets that need to be
fragmented.
> Though to be honest it seems some Websites turn off MTU discovery and
> ship everything out at 1500 which will always produce fragmented
> packets on your system.
True enough, but as long as they don't set the "DF" (Don't Fragment) bit
in the IP header, nothing will break. It's the servers that use the DF
bit to perform Path MTU Discovery, and fail to get the proper ICMP
messages back, that break down.
--
[EMAIL PROTECTED] (Fuzzy Fox) || "Good judgment comes from experience.
sometimes known as David DeSimone || Experience comes from bad judgment."
http://www.dallas.net/~fox/ || -- Life Lessons
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