> -----Original Message-----
> From: Tabor J. Wells [mailto:twells@fsckit.net]
> Sent: Wednesday, August 01, 2001 1:46 PM
> > So is there a way to make my server split packets into
> smaller chunks?
>
> Re-read what I sent above. Rebuild your copy of Exim. Set
> DELIVER_OUT_BUFFER_SIZE=1024 in your Local/Makefile.
it sounds as if you're suggesting that somehow the application layer is
responsible for forming a packet larger than the pix's mtu thus eliciting an
icmp request for fragmentation (assuming DF=0 in the tcp packet), and that
the same pix is blocking it's own icmp reply.
i doubt the sending machine is sending packets larger than it's interface's
mtu (probably 1500) and if it was it would be a driver or link layer framing
problem
> No, the requests to fragment are not getting to you. They are
> probably
> being blocked by the PIX with some sort of global deny of all
> ICMP rather
> than passing the types that tell you what size packets to send and
> blocking things like ICMP echo response traffic.
>
> You can work around this by building exim with a smaller
> DELIVER_OUT_BUFFER_SIZE as listed above.
don't know what this setting is for but it sounds like something to do with
memory rather than a packet size..
