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Re: [MiNT] Mintnet success ?



As far as I know, 1500 is a somehow standard value for ethernet connections. However, it is often tweaked. The most recurring example is when using VPM programs, because the VPN itself adds a few bytes in the packet, so you need to raise the MTU in order to get the packets through. Time ago there were websites that needed a bigger MTU in order to be browsed.

The loopback interface isn't affected by this, because it doesn't actually use the ethernet board.
Don't quote me on this, though ;-)


Il giorno 14/nov/07, alle ore 20:47, Peter Slegg ha scritto:

On Wed, 14 Nov 2007 16:30:26 -0500, Mark Duckworth <mduckworth@atari-source.com> wrote:
The MTU of ethernet is 1500. Under will definitely work fine, but you
will incur more overhead.  Sounds to me like you're ahead of the game
though seeing as how it's actually working.  I don't think this is
negotiable when it comes to setting it higher though :-P The fact that
it's working indicates an undersized/corrupted buffer somewhere (or
perhaps a defect with the card).

Thanks,
Mark


I've tried several different drivers and 3 different cards so we
can eliminate those possibilities.

Why does lo0 have mtu bigger than 1500 ?

lo0:    flags=0x4b<UP,BROADCAST,LOOPBACK,RUNNING>
        inet 127.0.0.1 netmask 255.255.255.0 broadcast 127.0.0.255
        metric 0 mtu 16384

Is 1500 a Mint limitation ? On a linux box I could ping packets
much bigger than 1500

Peter