> edns-buffer-size: <number>
> ...
> tation reassembly problems, usually seen as timeouts,
> then a
> value of 1480 can fix it.
>
I did some more tests (ping ns.dyne.org with different packet sizes) and
found that 1480 is still to large. The limit is somewhere between 1460
and 1480. I now use 1400 for the buffer-size.