Re: ADSL problem with large packets
On Thu, Aug 23, 2001 at 12:59:38PM +1000, Andrew Pollock wrote:
> Hi,
>
> I just got ADSL running on my home network with a Debian gateway (two ethernet
> cards).
>
> I think I've got an MTU problem. Large transfers just don't work, but I can make
> an SSH connection out (for example) and pinging and the likes works.
>
> I've got
>
> pty "pppoe -I eth0 -T 80 -m 1412"
> and
> mtu 1412
>
> in my peers file for the DSL connection as per documentation. I haven't messed
> with the MTUs on anything behind the Linux box. Should I? I thought the whole
> idea of this "MTU clamping" was this wasn't required?
eh. I think I remember that the default MTU is 1500, so the machines
behind the gateway would get their packets fragmented, which can lead
to (bizarre, seemingly random, and hard to diagnose) problems.
I'd suggest you try setting everything to 1412 anyway, just to check.
HTH,
Mike McGuire
Reply to: